- Aaronson, Marc (1950-1987)
- Abbadie, Antoine Thompson d' (1810-1897)
- Abbe, Cleveland (1838-1916)
- Abbe, Ernst (1840-1905)
- Abbon de Fleury [Abbo of Fleury; Albo; Albon Floriacensis] (c. 945-1004)
- Abbot, Charles Greeley (1872-1973)
- Abbott, Francis (1799-1883)
- Abbott, Francis (jnr) (1834-1903)
- Abel, Niels Henrik (1802-1829)
- Abell, George Ogden (1927 - 1983)
- Abetti, Antonio (1846-1928)
- Abetti, Giorgio (1882-1982)
- Abiosi [Abbiosi], Giovanni Battista [Jean-Baptiste] (fl. 1490-1520)
Ablufarabius: see al-Farabi, Mohammed (ca. 870-950)
- Abney, Sir William de Wiveleslie (1843-1920)
- Abraham bar Hiyya Ha-Nasi [Abraham Ben Chaja [Chija]; Abraham Judaeus] (ca. 1070-1136(?))
- Abraham Ben Dior [Ben David, Harischon; Josophat Ben Levi] (12th c.)
Abraham ben Meir ibn Ezra: see Ezra, Abraham ben Meir ibn (1092-1167)
- Abraham Zachut (15th c.)
Abu Abdallah al-Battani (868-929): see al-Battani
Abu al-Hasan: see Ali Ibn Rabban al-Tabari (838-870)
Abu Ali Hasan Ibn al-Haitham (965-1040): see al-Haitham
Abu al-Nasr al-Farabi (870-950): see al-Farabi
- Abu Dschaasar Almansur (712-775)
Abu Hamid al-Ghazali (1058-1128): see al-Ghazali
Abu Mashar: see Albumazar (787-885)
Abu Raihan al-Biruni (973-1048): see al-Biruni
- Abu'l Fida [Abulfeda], Ismail (1273-1331)
- Abul Wafa [Abu'l-Wafa] Muhammad al-Buzjani (940-997)
Achmed Ibn Ketir: see al-Farghani [Alfraganus]
- Achmed Ibn Mohammed Alfagan Abu Hamed (?-980)
- Acosta, Cristobal (1515-ca.1594)
- Acronius, Johann[es] (1520-1564)
- Adam von Bremen [Adam of Bremen] (?-c.1085)
- Adams, Charles Edward (1870-1945)
- Adams, Charles H. (1868 - 1951)
- Adams, George (?-1786)
- Adams, George (1750-1795)
- Adams, John Couch (1819-1892)
- Adams, John Frank (1930-1989)
- Adams, Philip Francis (1828-1901)
- Adams, Walter Sydney (1876-1956)
- Adams, William Grylls (1836-1915)
- Adderley, Ernest Edward (1914-1993[1992?])
- Adelard of Bath (1075-1160)
- Adelbulner, Michael (1702-1779)
Adierna: see Odierna, Gioanbatista [Giovan/Giovanni Battista] (1597-1660)
- Aepinus, Franz Ulrich Theodosius (1724-1802)
- Affleck, Ian Keith (b. 1952)
- Aganice (ca.1878 BC)
- Agardh, John Mortimer (1812-1862)
- Agassiz, Jean Louis Rodolphe (1807-1873)
- Agatharchides of Cnidus (? - ca. 150 BC)
- Aglaonike (ca.200 BC)
- Agnesi, Maria Gaetana (1718-1799)
- Agricola, Georgius [Bauer, Georg] (1494-1555)
- Agrippa (fl. AD 92)
- Agrippa, Heinrich Cornelius [Agrippa von Nettesheim] (1486-1535)
- Ahmad Khan, Khwajah Farid al-din (1747-1828)
- Ailly, Pierre d' [Aliacensis; Petrus de Allaco] (1350-ca.1420)
- Airy, George Biddell (1801-1892)
- Aitken, Alexander Craig (1895-1967)
- Aitken, Robert Grant (1864-1951)
- Ajima, Chokuyen Naonobu (1732-1798)
- Åkerman, Anders (1721-1778)
- Akhenaton [Akh(e)naten; Amenhotep (Amenophis) IV] (fl. 14th c. BC)
- Al-Baghdadi, Abu Mansur ibn Tahir (c.980-1037)
- Al-Bakri, A. A. (1010-1094)
- Al-Banna, al-Marrakushi ibn (1256-1321)
- al-Battani, Abu Allah [Abdallah] Mohammad ibn Jabir [Albategnius] (ca.868-929)
- al-Biruni, Abu Raihan (973-1048)
al-Buzjani: see Abul Wafa Muhammad al-Buzjani (940-997)
- al-Farabi, Mohammed [Abu Nasr; Abu al-Nasr; Ablufarabius; Avennasar] (ca. 870-950)
- al-Farghani (ca. 860)
- al-Ghazali, Abu Hamid (1058-1128)
- al-Haitham, Abu Ali Hasan Ibn [Alhazen] (965-1040)
- Al-Khalili, Shams al-Din Abu Abdallah (c.1320-c.1380)
al-Khawarizmi: see al-Khwarizmi (800-ca.850)
al-Khayyam, Omar: see Khayyam, Omar (ca.1044-ca.1123)
- al-Khwarizmi [al-Khawarizmi; al'Khwarizmi], Abu Abd-Allah [Abdullah; Ja'far] Mohammad [Muhammad] ibn Musa [Bin Musa] (ca.800-ca.850)
- al-Kindi, Yaqub Ibn Ishaq [Alkindus] (c.800-c.873)
- al-Maghribi, Muhyi l'din (c.1220-c.1283)
- Al-Marrakushi (fl. ca. 1262)
- al-Quhi, Abu Sahl Wayjan ibn Rustam (ca. 940 - ca. 1000)
- al-Razi, Mohammad Ibn Zakariya (864-930)
- Al Sufi, Abd-al-Rahman [Abr-ar Rahman As Sufi; Abd al Rahman Abu al Husain; Azophi] (903-986)
al-Tusi, Nasir al-Din (1201-1274): see Nasir al-Din al-Tusi
- al-Zarqali [Arzachel or As Sarkali] (around 1080)
Albategnius: see al-Battani, Abu Abdallah (ca.868-929)
- Alberti, Gioachino (19th c.)
- Albertus Magnus [Albert the Great; Graf von (Count of) Bollstädt] (ca.1200-1280)
- Albumazar [Abu Mashar; Abu-Mashar; Abu Maschar] (787-885)
- Alcock, George E. D. (b. 1912)
- Alcuin (c.732-804)
- Alden, Harold Lee (1890-1964)
- Alder, Kurt (1902-1958)
- Aldhelm (c.639-709)
- Alcmaeon of Croton [Alkmaion von Kroton] (ca. 535 BC - ?)
- Aldrin, Edwin Eugene, Jr. ["Buzz"] (b. 1930)
- Alembert, Jean-Baptiste Le Rond d' (1717-1783)
- Alenio, Giulio (1582-1644)
- Alexander the Great [A. der Große; A. of Macedon] (356 BC - 323 BC)
- Alexandre, Jacques (1653-1734)
- Alfonso X [Alfons X. von Castilien; Alfonso the Astronomer; Alfonso the Wise] (1221-1284)
Alfraganus: see al-Farghani
- Alfred the Great [Alfred der Große] (849-899)
- Alfvén, Hannes Olof Gösta (1908-1995)
Alhazen: see al-Haitham, Abu Ali Hasan Ibn (965-1040)
- Ali Ibn Rabban al-Tabari (838-870)
Alkmaion von Kroton: see Alcmaeon of Croton (ca. 535 BC - ?)
- Allen, Clabon Walter (1904-1987)
- Allen, David (1946-1994)
- Alpetragius [Al-Bitruji, Nur al-Din Ibn Ishaq; Al Betrugi, Nur Ed-Din; al Bidrudschi, Nur ad din] (? - ca. 1100)
- Alpher, Ralph Asher (b. 1921)
- Alter, David (1807-1881)
- Althoff, Friedrich Theodor (1839-1908)
- Alvarez, Luis Walter (1911-1988)
- Alzate y Ramirez, José Antonio (1738-1799)
- Ambartsumian [Ambarzumjan], Viktor Amazaspovich (1908-1996)
- Ambolt, Nils Peter (1900-1969)
- Ambronn, Leopold Friedrich Anton (1854-1930)
- Ambronn, Richard (1887-1954)
Amenhotep (Amenophis) IV: see Akhenaton (fl. 14th c. BC)
- Ames, Nathaniel (1708-1764)
- Amici, Giovanni Battista (1786-1868)
- 'Amili, Baha' ad-din Muhammad ibn Husayn, al- [Shaykh Baha'i] (1546-1622)
- Amiot, Jean-Joseph-Marie (1718-1793)
- Ammen, Daniel (1820-1898)
- Amontons, Guillaume (1663-1705)
- Ampère, André Marie (1775-1836)
- Amundsen, Roald Engelbregt Gravning (1872-1928)
- Anaxagoras of Clazomenae (ca. 500 B.C. - ca. 428 B.C.)
- Anaximander of Miletus (611 BC - 547 BC)
- Anaximenes of Miletus (ca. 585 BC - ca. 525 BC)
- Anders, William Alison (b. 1933)
- Anderson, Carl David (1905-1991)
- Anderson, Don Lynn (b. 1933)
- Anderson, Henry James (1799-1875)
- Anderson, John A. (1876-1959)
Andreae, Iohannes: see Schindel, Iohannes (fl. 14th-15th c.)
- Andreae, Johann Valentin (1586-1654)
- Andronicus of Cyrrhus [Andronicus Cyrrhestes] (fl. c. 100 BC)
- Angel, James Roger Prior (b. 1941)
- Angelitti, Filippo (1856-1931)
- Ångström, Anders Jonas (1814-1874)
- Anianus (fl. 412)
- Ansgar [Angarius; Anskar], St (801-865)
- Anthelme, Voituret (ca.1618-1683)
- Anthonisz, Adriaan (ca. 1543 - 1620)
- Anville, Jean Baptiste [Jean-Baptiste] Bourguignon d' (1697-1782)
- Apian [Bienewitz or Bennewitz], Peter (1495-1552)
- Apollonius [Apollonios] of Perga (200 BC - 100 BC)
- Appleton, Edward Victor (1892-1965)
- Apt, Jay (b. 1949)
- Aquila (fl. 2nd c.)
Aquinas, Thomas: see Thomas Aquinas (1224/25-1274)
- Arago, Dominique François Jean (1786-1853)
- Aratus [Aratos] (ca. 315 BC - ca. 245 BC)
- Archelaus (fl. 5th c. BC)
- Archenhold, Friedrich Simon (1861-1939)
- Archimedes of Syracuse (287 BC - 212 BC)
- Archytas of Tarentum (ca. 428 BC - ca. 350 BC)
- Arctowski, Henryk (1871-1958)
- Ardeberg, Arne (b. 1940)
- Ardenne, Manfred von (1907-1997)
- Argand, Emile (1879-1940)
- Argelander, Friedrich Wilhelm August (1799-1875)
- Argoli, Andrea (1570-1657)
- Aristarchus of Samos (310 BC - 230 BC)
- Aristillus (ca. 200 BC)
- Aristotle of Stagira (384 BC - 322 BC)
- Armstrong, Neil Alden (b. 1930)
- Arnaldus Villanovanus [Arnaldus of Villanueva] (1235/1240-1312/1313)
- Arnold, James Richard (b. 1923)
- Arnold, John (1736-1799)
- Arp, Halton Christian (b. 1927)
- Arrest, Heinrich Louis d' (1822-1875)
- Arrhenius, Svante August (1859-1927)
- Artin, Emil (1898-1962)
- Aryabhata the Elder (476-550(499?))
Arzachel: see al-Zarqali (around 1080)
As Sarkali: see al-Zarqali (around 1080)
- Asada Goryu (1734-1799)
- Ashmole, Elias (1617-1692)
- Asimov, Isaac (1920-1992)
- Assemani, Simeon (1752-1821)
- Aston, Francis William (1877-1945)
- Atwood, George (ca.1745-1807)
- Audiffredi [Audifreddi ?], Giovanni Battista [Giombattista] [orig. Gulio Cesare] (1734-1794)
- Augustus, Caesar (63 BC - AD 14)
- Ausonius, Decimus Magnus (c. 310-c. 395)
- Autolycus of Pitane [Autolykos aus Pitane] (c. 360 BC - c. 290 BC)
- Auwers, Arthur Julius Georg Friedrich von (1838-1915)
- Auzout, Adrien (1622-1691)
- Avempace [Ibn Badsha; Ibn Badja; ibn Baddscha; Aven-Pace] (end of 11th c.-ca.1138)
Avennasar: see al-Farabi, Mohammed (ca. 870-950)
Averroes: see Ibn Rushd (1128-1198)
Avicenna: see Ibn Sina (980-1037)
- Avogadro, Amedeo (1776-1856)
- Axford, William Ian (b. 1933)
- Baade, Wilhelm Heinrich Walter (1893-1960)
- Babbage, Charles (1792-1871)
- Babcock, Harold Delos (1882-1968)
- Babcock, Horace Welcome (b. 1912)
- Bache, Alexander Dallas (1806-1867)
- Bachmann, Augustus Quirinus [Rivinus] (1652-1723)
- Backlund, Jöns Oskar (1846-1916)
- Bacon, Francis (1561-1626)
- Bacon, Roger (ca.1214-ca.1294)
- Baer, Karl von (1792-1876)
- Baeyer, Johann Jacob (1794-1885)
- Baffin, William (ca.1584-1622)
- Baillaud, Édouard Benjamin (1848-1934)
- Bailly, Jean Sylvain (1736-1793)
- Baily, Francis (1774-1844)
- Bainbridge, John (1582-1643)
- Baker, Henry Frederick (1866-1956)
- Baldwin, John (20th c.)
- Baldwin, Joseph Mason (1878-1945)
- Ball, Leo Anton Carl de (1853-1916)
- Ball, Robert Stawell (1840-1913)
- Balmer, Johann Jakob (1825-1898)
- Bamberg, Carl (1847-1892)
- Bancroft, George (1800-1891)
- Banneker, Benjamin (1731-1806)
- Banting, Frederick Grant (1891-1941)
- Banu Musa, Muhammad / Ahmad / al-Hasan (fl. 9th c.)
- Bappu, Manali Kallat Vainu (1927-1982)
- Bar Hebræus [Bar 'Ebraya; Abu'l Faraj] (1226-1286)
- Baracchi, Pietro Paolo Giovanni Ernesto (1851-1926)
- Baranzano, Giovanni Antonio [Redento] (1590-1622)
Barberini, Maffeo: see Urban VIII
- Barbier, Joseph Émile (1839-1889)
- Barclay, Andrew (c.1814-1900)
- Bardesanes [Bar-Daisan] (154(164?)-222)
- Barkly, Henry (1815-1898)
- Barlow, Peter (1776-1862)
- Barnard, Edward Emerson (1857-1923)
- Barnard, Frederick Augustus Porter (1809-1889)
- Barnum, Charlotte Cynthia (1860-1934)
- Barocius [Barozzi], Franciscus [Francesco] (1537-1604)
- Barrett, Alan H. (1927?-1991)
- Barrow, Isaac (1630-1677)
- Bartholin, Erasmus (1625-1698)
- Bartholomaeus Anglicus (fl.1224-1231)
- Bartsch, Jacob (1599/1600 - 1632/33)
- Basov, Nikolay Gennadiyevich [Bassow, Nikolai Gennadijewitsch] (b. 1922)
- Bates, Richard Heaton Tunstall (1929-1990)
- Bay, Zoltán (1900-1992)
- Bayer, Johann (1572-1625)
- Beals, Carlyle Smith (1899-1979)
- Beames, Ken (1899-1989)
- Bean, Alan LaVern (b. 1932)
- Beaugrand, Jean (ca. 1595 - ca. 1640)
Beaune, Florimond de: see Debeaune, Florimond (1601-1652)
Beck, Aloys, Edler von Widmannstätten: see
Widmannstätten, Alois von Beckh- (1753/54-1849)
- Becquerel, Alexandre Edmond (1820-1891)
- Becquerel, Antoine Henri (1852-1908)
- Beda Venerabilis [Baeda; Engl. The Venerable Bede] (ca.673-735)
- Beeckman, Isaac (1588-1637)
- Beer, Wilhelm (1797-1850)
- Behaim, Martin (1459-1507)
- Belfield, Algernon H. (? - ?)
- Belgrado, Jacopo [Giacopo] (1704-1789)
- Bell, Alexander (1847-1922)
- Bell Burnell [Bell; Bell-Burnell], Susan Jocelyn (b. 1943)
- Bellarmino [Bellarmine], Roberto [Robert] (1542-1621)
- Belopolskij [Belopolsky], Aristarkh Apollonovich [Aristarch Apollonowitsch] (1859-1934)
- Benedetti, Giovanni Battista (1530-1590)
- Bennett, Willard Harrison (1903-1987)
- Benoît, Michel (1715-1774)
- Benzenberg, Johann Friedrich (1777-1849)
- Berenice II (c. 269 BC-221 BC)
- Bergstrand, Carl Östen Emanuel (1873-1948)
- Bernacchi, Louis Charles (1876-1942)
- Bernoulli (family)
- Bernoulli, Daniel (1700-1782)
- Bernoulli, Jacob [Jakob, Jacques] (1654-1705)
- Bernoulli, Johann [Jean] (1667-1748)
- Bernstein, Jeremy (b. 1929)
- Berosus [Berosós; Berossós; Berossos von Babylon] (ca. 345 BC - ca. 270 BC)
- Berthoud, Ferdinand (1727-1807)
- Berti, Gasparo (ca.1600-1643)
- Bertrand, Joseph Louis Francois (1822-1900)
- Berzelius, Jöns Jacob (1779-1848)
- Bessel, Friedrich Wilhelm (1784-1846)
- Bessemer, Henry, Sir (1813-1898)
- Bethe, Hans Albrecht (b. 1906)
- Bevis, John (1695-1771)
- Bhabha, Homi Jehangir (1909-1966)
- Bhaskara (1114-1185)
- Bianchini, Francesco (1662-1729)
- Bickel, Lennard (20th c.)
- Biela, Wilhelm von (1782-1856)
- Biermann, Ludwig Franz Benedikt (1907-1986)
- Biggs, Alfred Barrett (1825-1900)
- Bigourdan, Guillaume (1851-1932)
- Bilfinger, Georg Bernhard (1693-1750)
- Billy, Jacques de (1602-1679)
- Binet, Jacques-Philippe-Marie [Jacques Philippe Marie] (1786-1856)
- Biot, Jean-Baptiste [Jean Baptiste] (1774-1862)
- Birch, Peter Vaughan (b. 1949)
- Birkhoff, George David (1884-1944)
- Bishop, Roy (20th c.)
- Bjerknes, Vilhelm Frimann Koren (1862-1951)
- Blaauw, Adriaan (b. 1914)
- Black, Joseph (1728-1799)
- Blackett, Patrick Maynard Stuart (1897-1974)
- Blaeu, Willem Janszoon (1571-1638)
- Bliss, Gilbert Ames (1876-1951)
- Bliss, Nathaniel (1700-1764)
- Blyth, John (fl. 20th c.)
- Bobillier, Etienne (1798-1840)
- Bochart de Saron, Jean-Baptiste-Gaspard (1730-1794)
- Bode, Johann Elert (1747-1826)
- Boethius, Anicius Manilius Servinus (480-524)
- Bohlin, Karl Petrus T[h]eodor (1860-1939)
- Bohnenberger, Johann Gottlob Friedrich von (1765-1831)
- Bohr, Harald August (1887-1951)
- Bohr, Niels Henrik David (1885-1962)
- Bok, Bart Jan (1906-1983)
- Bolton, John Gatenby (1922-1993)
- Boltzmann, Ludwig (1844-1906)
- Bolyai, Farkas [Wolfgang] (1775-1856)
- Bolyai, János [Johann] (1802-1860)
- Bolzano, Bern[h]ard (1781-1848)
- Bonaventura, Federigo (1555-1602)
- Boncompagni, Balthasar (1821-1894)
- Bond, George Phillips (1825-1865)
- Bond, William Cranch (1789-1859)
- Bondi, Hermann (b. 1919)
- Bonestell, Chesley (1888-1986)
- Bonnet, Charles (1720-1793)
- Bonnet, Pierre Ossian (1819-1892)
- Boole, George (1815-1864)
- Booth, Edgar Harold (1893-1963)
- Borchardt, Carl Wilhelm (1817-1880)
- Borda, Jean Charles [Jean-Charles de] (1733-1799)
- Borel, Félix Édouard Justin Émile (1871-1956)
- Borelli, Giovanni Alfonso (1608-1679)
- Borman, Frank (b. 1928)
- Born, Max (1882-1970)
- Borra, Ermanno Franco (20th c.)
- Borrus [Borri; Burrus], Christopher (1583-1632)
- Bosch, Carl (1874-1940)
Boscovich: see Boskovic
- Bose, Jagadis Chandra (1858-1937)
- Bose, Satyendra Nath [Satyendranath] (1894-1974)
- Boskovic [Boscovich], Rudjer Joseph [Ruggiero Giuseppe; Rodger Joseph] (1711-1787)
- Boss, Lewis (1846-1912)
- Bossut, Charles (1730-1814)
- Bothe, Walther (1891-1957)
- Bouguer, Pierre (1698-1758)
- Boulainvilliers, Henri de, Comte de (count of) Saint-saire (1658-1722)
- Boulliau [Bouillaud], Ismael [Bullialdus] (1605-1694)
- Bourgainville, Louis Antoine de (1729-1811)
- Bouvard, Alexis (1767-1843)
- Bouvet, Joachim (?-1732)
- Bowditch, Nathaniel (1773-1838)
- Bowdoin, James (1726-1790)
- Bowen, Edward George (1911-1991)
- Bowen, Ira Sprague (1898-1973)
- Boyle, Robert (1627-1691)
- Boyle, Willard S. (b. 1924)
- Boys, Charles Vernon (1855-1944)
- Bracewell, Ronald Newbold (b. 1921)
- Brackett, Frederick Sumner (1896-1972)
- Bradley, James (1693-1762)
- Brag, Jonas (1781-1857)
- Bragg, William Henry (1862-1942)
- Brahe, Sofie [Sophia] (1556-1643)
- Brahe, Tycho [Brahe, Tyge; Brahe, Tycho de] (1546-1601)
- Brahmagupta (ca. 598 - ca. 665)
- Brander, Georg Friedrich (1713-1783)
- Brandes, Heinrich Wilhelm (1777-1834)
- Brashear, John Alfred (1840-1920)
- Brattle, Thomas (1658-1713)
- Braun, Karl Ferdinand (1850-1918)
- Braun, Wernher von (1912-1977)
- Bredman, Johan (1770-1859)
- Breguet, Abraham-Louis (1747-1823)
- Brendel, Martin (1862-1939)
- Brewster, David (1781-1868)
- Brianchon, Charles Julien (1783-1864)
- Briggs, Daniel S. (1964-1998)
- Briggs, George Henry (1893-1987)
- Briggs, Henry (1561-1630)
- Bring, Erland Samuel (1736-1798)
- Brioschi, Francesco (1824-1897)
- Briot, Charles Auguste (1817-1882)
- Brisbane, Thomas Makdougall (1773-1860)
- Brooks, Joseph (1847-1918)
- Brouncker, William (ca.1620-1684)
- Brouwer, Dirk (1902-1966)
- Brouwer, Luitzen Egbertus Jan (1881-1966)
- Brown, Ernest William (1866-1938)
- Brown, Peter (20th c.)
- Brown, Robert Hanbury (b. 1916)
- Browne, Thomas (1605-1682)
- Browne, William Rowan (1884-1975)
- Brozek, Jan [Broscius, Brocki, Broski, Broszcz, Brzoski, Zbroek] (1585-1652)
- Bruce, William (1833-1927)
- Brunner, William Otto (1878-1958)
- Bruno, Giordano (1548-1600)
- Bruns, Ernst Heinrich (1848-1919)
Buergi: see Bürgi, Joost (1552-1632)
- Buffon, Georges Louis Leclerc Comte de (1707-1788)
- Bulgaris, Eugenius (1716-1806)
- Bunsen, Robert Wilhelm (1811-1899)
- Buot, Jacques (ca.1675- ?)
- Burbank, Daniel C. (b. 1961)
- Burbidge, Eleanor Margaret Peachey (b. 1919)
- Burbidge, Geoffrey (b. 1925)
- Burckhardt, Johann Karl (1773-1825)
- Bürg, Johann Tobias (1766-1835)
- Bürgi [Buergi], Joost (1552-1632)
- Burglechner, Anton (1693-1760)
- Buridan [Buridano], John (14th century)
- Burke-Gaffney, Michael Walter, S. J. (1896-1979)
- Burney, Charles (1726-1814)
- Burnham, Sherburne Wesley (1838-1921)
- Büttner, Wolfgang (b. 1905)
- Buys-Ballot, Christophorus Henricus Didericus (1817-1890)
- Cacciatore, Gaetano (1814-1889)
- Cacciatore, Niccolò [Nicolò] (1780-1841)
- Caccini, Tommaso (1574-1648)
- Caesar, Julius (100? BC - 44 BC)
- Cahill, Daniel William (1796-1864)
- Cajori, Florian (1859-1930)
- Callippus of Cyzicus (ca. 370 BC - ca. 310 BC)
- Calvin, John (1509-1564)
- Campanella, Tommaso (1568-1639)
- Campani, Giuseppe (1635-1715)
- Campanus of Novara [Campano, Giovanni] (1220-1296)
- Campbell, Catherine Celeste (1905-?)
- Campbell, William Wallace (1862-1938)
- Candy, Michael Philip (1928-1994)
- Canivet (...-1774)
- Cannizzaro, Stanislao [Stanislav] (1826-1910)
- Cannon, Annie Jump (1863-1941)
- Cantelli, Francesco Paolo (1875-1966)
- Canton, John (1718-1772)
- Cantor, Georg Ferdinand Ludwig Philipp (1845-1918)
- Cantor, Moritz Benedikt (1829-1920)
- Capella, Martianus (fl. 5th c.)
- Capra, Baldassar [Baldassarre] (1580-1626)
- Caramuel y Lobkowitz, Juan (1606-1682)
- Carathéodory, Constantin (1873-1950)
- Carbonnelle, Ignatius (1829-1889)
- Carcavi [Carcavy], Pierre de (ca. 1600 - 1684)
- Cardan [Cardano; Cardanus], Jerome [Geronimo; Hieronymus; Girolamo] (1501-1576)
- Carnot, Lazare Nicolas Marguérite (1753-1823)
- Caron, Antoine (c.1515-1593)
- Carrington, Richard Christopher (1826-1875)
- Carruthers, George R. (b. 1939)
- Cartan, Elie Joseph (1869-1951)
- Carter, Charles Rooking (1822-1896)
- Cassini (family)
- Cassini, Gian Domenico [Giovanni Domenico; Jean Dominique] [Cassini I] (1625-1712)
- Cassini, Jacques [Cassini II] (1677-1756)
- Cassini, Jacques Dominique [Cassini IV] (1748-1845)
- Cassini de Thury, César-François [Cassini III] (1714-1784)
- Castelli, Benedetto (1578-1643)
- Castillon, Giovan Francesco Mauro Melchior [Johann] (1704[1708?]-1791)
- Castner [Kastner], Caspar (1655-1709)
- Cataldi, Pietro Antonio (1552-1626)
- Cauchy, Augustin Louis (1789-1857)
- Cavalieri, Bonaventura (1598?-1647)
- Cavendish, Henry (1731-1810)
- Cayley, Arthur (1821-1895)
- Cecco d'Ascoli (1250/1258/1269?-1327)
- Cellarius, Andreas (c.1596-1665)
- Cellérier, Charles (1818-1889)
- Celsius, Anders (1701-1744)
Cerenkov: see Cherenkov, Pavel Alekseevich (1904-1990)
- Cerulli, Vincenzo (1859-1927)
- Cesi, Federico (1585-1630)
- Chadwick, James (1891-1974)
- Challis, James (1803-1882)
- Chalonge, Daniel (1895-1977)
- Chamberlain, Noel Gordon (b. 1916)
- Chamberlin, Thomas Chrowder (1843-1928)
- Chandler, Seth Carlo (1846-1913)
- Chandrasekhar, Subrahmanyan (1910-1995)
Chang Heng: see Zhang Heng (78-139)
- Chant, Clarence Augustus (1865-1956)
- Chaplygin [Tschaplygin], Sergej Alekseevich (1869-1942)
- Chapman, John Herbert (1921-1979)
- Chapman, Sydney (1888-1970)
- Charles II, King of England (1630-1685)
- Charlier, Carl Vilhelm Ludwig (1862-1934)
- Châtelet, Gabrielle-Emilie Le Tonnelier de Breteuil Marquise du (1706-1749)
- Chaucer, Geoffrey (ca. 1343-1400)
- Chebyshev [Tschebyschew], Pafnutij [Pafnuty] L'vovich [Lwowitsch] (1821-1894)
- Cherenkov [Cerenkov, Tscherenkow], Pavel Alekseevich (1904-1990)
- Cherry, Thomas Macfarland (1898-1966)
Chéseaux: see Loys de Chéseaux, Philippe (1718-1751)
- Chiara, Luciano (1910-1969)
- Childrey, Joshua (1623-1670)
- Chladni, Ernst Florens Friedrich (1756-1827)
- Christiansen, Wilbur Norman (b. 1913)
- Christie, William Henry Mahoney (1845-1922)
- Christmann, Jacob (1554-1613)
- Christy, James W. (b. 1938)
- Chrysippus (280 BC - 206 BC)
Chu-hsi: see Zhu Xi (1130-1200)
- Cidenas (4th c. BC)
- Ciermans, Jean (1602-1648)
Ciolkovskij: see Tsiolkovsky, Konstantin Eduardovich (1857-1935)
- Clairaut, Alexis Claude (1713-1765)
- Clark (family)
- Clark, Alvan (1804-1887)
- Clark, Alvan Graham (1832-1897)
- Clarke, Samuel (1675-1729)
- Clarke, William Branwhite (1798-1878)
- Clausen, Thomas (1801-1885)
- Clausius, Rudolf Julius Emanuel (1822-1888)
- Clavius [Klau], Christoph [Christopher] (1538-1612)
- Cleanthes (331 BC - 232 BC)
- Cleomedes [Kleomedes] (fl. 1st c.)
- Clerke, Agnes Mary (1842-1907)
- Clerke, Ellen Mary (1840-1906)
- Clifford, William Kingdon (1845-1879)
- Coblentz, William Weber (1873-1962)
- Cocconi, Giuseppe (b. 1914)
- Cockcroft, John Douglas, Sir (1897-1967)
- Colbert, Jean Baptiste (1619-1683)
- Collins, John (1625-1683)
- Collins, Michael (b. 1930)
- Colson, Edmund Albert (1881-1950)
- Columbus, Christopher [Cristóbal Colón; Cristoforo Colombo; Christoph Kolumbus] (1451-1506)
- Comenius, Johann Amos [orig. Komenský, Jan Amos] (1592-1670)
- Commandino, Federico (1509-1575)
- Compton, Arthur Holly (1892-1962)
- Comrie, Leslie John (1893-1950)
Condamine: see La Condamine, Charles Marie de (1701-1774)
- Condon, Edward Uhler (1902-1974)
- Condorcet, Marie Jean Antoine Nicolas de Caritat (1743-1794)
- Coningham, S. Brett (?-1999)
- Conon of Samos (ca. 280 BC - ca. 220 BC)
- Conrad, Charles P. "Pete" (1930-1999)
- Conway, Anne, née Finche (1631-1679)
- Cook, James (1728-1779)
- Cooke, William Ernest (1863-1947)
- Copernicus [Kopernik, Kopernikus], Nicolaus [Mikolaj] (1473-1543)
- Cornu, Marie Alfred (1841-1902)
- Coronelli, Vincenzo Maria (1650-1718)
- Cortes de Albacar, Martin (before 1530 - before 1582)
- Cosimo I de' Medici (1519-1574)
- Cosserat, Eugène Maurice Pierre (1866-1931)
- Coster, Francis (1532?-1619)
- Cotes, Roger (1682-1716)
- Coulomb, Charles Augustin de (1736-1806)
- Cournot, Antoine Augustin (1801-1877)
- Covington, Arthur Edwin (b. 1913)
- Cowling, Thomas George (1906-1990)
- Coyne, George V. (b. 1933)
- Crabtree, William (1610-1644)
- Craig [Craige], John (1662/63-1731)
- Cremona, Antonio Luigi Gaudenzio Giuseppe (1830-1903)
- Cristannus de Prachaticz (before 1370-1439)
- Cronstrand, Simon Anders (1784-1850)
- Crookes, William (1832-1919)
- Culpeper, Nicholas (1616-1654)
- Cumont, Franz [Franz-Valéry-Marie] (1868-1947)
- Cunitz [Cunitia], Maria (1610-1664)
- Curie, Douglas (20th c.)
- Curie, Marie, née Sklodowska (1867-1934)
- Curie, Pierre (1859-1906)
- Curlewis, Harold Burnham (1874-1968)
- Curley, James (1796-1889)
- Curtis, Heber Doust (1872-1942)
Cusanus: see Nicholas of Cusa (1401-1464)
- Cutler, Manasseh (1742-1823)
- Cuvier, Georges (1769-1832)
- Cyrano de Bergerac, Savinien (1619-1655)
- Cysat, Johann Baptist [Cysatus] (1586-1657)
- Czerny, Albin (1821-1900)
- Daguerre, Louis-Jacques-Mandé (1787-1851)
d'Alembert: see Alembert, Jean-Baptiste Le Rond d' (1717-1783)
- Dalencé, Joachim (1640-1707)
- Dalgarno, Alexander (b. 1928)
- Dallmeyer, John Henry (1830-1883)
- Dalrymple, Alexander (1737-1808)
- Dalton, John (1766-1844)
- Danjon, André-Louis (1890-1967)
- Dante Alighieri (1265-1321)
- Danti, Egnatio [Egnazio, Ignazio] (1536-1586)
- Darquier de Pellepoix, Antoine (1718-1802)
d'Arrest: see Arrest, Heinrich Louis d' (1822-1875)
- Darwin, Charles Robert (1809-1882)
- Darwin, George Howard (1845-1912)
- Dasypodius [Rauchfuss], Cunradus (1530-1600)
- Daublebsky von Sterneck, Robert von (1839-1910)
- Davidson, George (1825-1911)
da Vinci: see Leonardo da Vinci (1452-1519)
- Davis, Charles Henry (1807-1877)
- Davis, Elizabeth Brown (1863-1917)
- Davis, John (20th c.)
- Davison, William (1593-1669)
- Davy, Humphry (1778-1829)
- Dawes, William (1762-1836)
- Dawes, William Rutter (1799-1868)
- Debeaune [de Beaune], Florimond (1601-1652)
- Dechales, Claude Francois Milliet (1621-1678)
- Dechend, Hertha von (1915-2001)
de Chéseaux: see Loys de Chéseaux, Philippe (1718-1751)
- Dee, John (1527-1608)
- De Filiis, Anastasio (1577-Naples 1608)
- de la Cruz, Sor Juana Inez (1651-1717)
- Del Rio, Martin Antoininem (1551-1608)
- Delambre, Jean Baptiste Joseph (1749-1822)
- Delaunay, Charles Eugene (1816-1872)
- Delbrück, Max (1906-1981)
- Delisle, Guillaume (1675-1726)
- Delisle, Joseph-Nicolas (1688-1768)
- della Valle, Pietro (? - 16--)
de Mairan: see Mairan, Jean Jacques d'Ortous [Dortous] de (1678-1771)
- Democritus of Abdera (ca. 460 BC - ca. 370 BC)
- De Morgan, Augustus (1806-1871)
- Denis, Jean-Baptiste (ca. 1640-1704)
- Denner, Jacob (1659-1746)
- Denning, William Frederick (1848-1931)
- Dent, Edward John (1790-1853)
- Denza, Francesco (1834-1894)
- Deparcieux, Antoine (1703-1768)
- Derham, William (1657-1735)
- Desargues, Gérard (1591-1661)
- Descartes, René (1596-1650)
- Desing, Anselm (1699-1772)
de Sitter, Willem: see Sitter, Willem de (1872-1934)
- Deslandres, Henri Alexandre (1853-1948)
- de Vaucouleurs: see Vaucouleurs, Gérard de (1918-1995)
- Dicke, Robert Henry (b. 1916)
- Dickinson, Terence (20th c.)
- Dicuil (fl. 8th c.)
- Diesterweg, Adolph (1790-1866)
- Digges, Leonard (ca. 1520 - ca. 1559)
- Digges, Thomas (1545/46-1595)
- Dionis du Séjour, Achille Pierre (1734-1794)
- Dionysodorus (ca. 250 BC - ca. 190 BC)
- Diophantus of Alexandria [Diophantos von Alexandrien] (ca. 200 - ca. 284)
- Dirac, Paul Adrien Maurice (1902-1984)
- Dirichlet, Johann Peter Gustav Lejeune (1805-1859)
- Divini, Eustachio (1610-1685)
- Dixon, Jeremiah (1733-1779)
- Dodwell, George Frederick (1879-1963)
- Doerffel, Georg Samuel (1643-1688)
- Doi, Takao (b. 1954)
- Dolezal, Erich (1902-1990)
- Dollond, John (1706-1761)
- Dollond, John (1730-1821)
- Donati, Giambattista [Giovanni Battista] (1826-1873)
- Dooley, James Creswell (b. 1919)
- Doppelmayr, Johan Gabriel (1671-1750)
- Doppler, Johann Christian (1803-1853)
- Douglas, Charles S. (1923-1998)
- Douglass, Andrew Ellicott (1867-1962)
- Dove, Heinrich Wilhelm (1803-1879)
- Drake, Francis (c.1540-1596)
- Drake, Frank Donald (b. 1930)
- Draper, Charles Stark (1901-1987)
- Draper, Henry (1837-1882)
- Draper, John William (1811-1882)
- Drebbel, Cornelius (1572-1633)
- Dreyer, John Louis Emil (1852-1926)
- Drygalski, Erich Dagobert von (1865-1949)
- Dudith [Duditus], Andreas (1533-1589)
- Dudley, Robert (1573-1649)
- Duffield, Walter Geoffrey (1879-1929)
- Duhamel [Du Hamel], Jean-Baptiste (1623/24-1706)
- Duhem, Pierre Maurice Marie (1861-1916)
- Dulong, Pierre Louis (1785-1838)
- Dumée, Jeanne (18th century)
- Dunash ben Tamim (c.900-c.960)
- Dunbar, William (1749-1810)
- Dunér, Nils Christofer (1839-1914)
- Dunlop, James (1793-1848)
- Dunstable, John (?-1453)
- Dürer [Duerer], Albrecht (1471-1528)
- Durrance, Samuel T. (b. 1943)
- du Val, Patrick (1903-1987)
- Dyson, Frank Watson (1868-1939)
- Dyson, Freeman J. (b. 1923)
- Earnshaw, Thomas (1749-1829)
- Eaton, Etta Maine (1869-1915)
- Eberhard, Gustav (1867-1940)
- Eckert, Wallace John (1902-1971)
- Eddington, Arthur Stanley (1882-1944)
- Edgeworth, Kenneth Essex (1880-1972)
- Edison, Thomas Alva (1847-1931)
- Einbu [Enebo], Sigurd (1866-1946)
- Einstein, Albert (1879-1955)
- Ellery, Robert Lewis John (1827-1908)
- Ellison, Frederick Archdall (1864-1936)
- Elsasser, Walter M. (1904-1991)
- Elwin, Syd J. (ca. 1905-1993)
- Empedocles of Akragas (ca. 492 BC - ca. 432 BC)
- En Henduanna (ca. 2354 BC)
- Encke, Johann Franz (1791-1865)
- Englefield, Henry Charles (1752-1822)
- Ennor, Arnold Hughes (1912-1977)
- Eötvös, Lóránd [Roland] von (1848-1919)
- Epicurus of Samos [Epikur] (341-270 BC)
- Epping, Joseph (1835-1894)
- Epstein, Isadore (1919-1996)
- Eratosthenes of Cyrene (ca. 276 BC - ca. 196 BC)
- Erfle, Heinrich Valentin (1884-1923)
- Erman, Georg Adolph [Adolf] (1806-1877)
- Esclangon, Ernest Benjamin (1876-1954)
- Euclid of Alexandria (fl. ca. 295 BC)
- Eudoxus of Cnidus (ca. 400 BC - ca. 347 BC)
- Eugenius I (?-647)
- Euler, Leonhard (1707-1783)
- Evans, John V. (20th c.)
- Ezra, Abraham ben Meir ibn [Abraham Ben Esra [Ibn Esra]] (ca.1092-1167)
- Fabri [Fabry], Honoré (1607-1688)
- Fabricius, David (1564-1617)
- Fabricius, Johannes (1587-1616)
- Fabry, Marie Paul Auguste Charles (1867-1945)
- Fairbank, William Martin (1917-1989)
Fairfax Somerville, Mary: see Somerville, Mary Fairfax Greig (1780-1872)
- Falck, Anders (1740-1796)
- Faraday, Michael (1791-1867)
- Fatou, Pierre Joseph Louis (1878-1929)
- Faulkner, Don (20th c.)
- Faye, Hervé-Auguste-Etienne-Albans [Hervá Auguste Etienne] (1814-1902)
- Fermat, Pierre de (1601-1665)
- Fermi, Enrico (1901-1954)
- Fernel, Jean François (c.1497-1558)
- Ferrari, Ludovico [Lodovico] (1522-1565)
- Ferrari d'Occhieppo, Konradin (b. 1907)
- Ferrel, William (1817-1891)
- Feuillée, Louis (1660-1732)
- Feynman, Richard Phillips (1918-1988)
- Feyjóo y Montenegro, Benito Jerónimo (1676-1764)
- Filchner, Wilhelm (1877-1957)
- Fincke, Edward Michael (b. 1967)
Fincke, Thomas: see Fink, Thomas (1561-1656)
- Finé, Oronce (1494-1555)
- Fink [Fincke], Thomas (1561-1656)
- Fisher, Ronald Aylmer (1890-1962)
- Fitzgerald [FitzGerald], George Francis (1851-1901)
- Fitzpatrick, John (1807-1881)
- Fixlmüller [Fixlmillner], Placidus (1721-1791)
- Fizeau, Armand-Hippolyte-Louis [Armand Hippolyte Louis] (1819-1896)
- Flammarion, Nicolas Camille (1842-1925)
- Flamsteed, John (1646-1719)
- Fleckenstein, Joachim Otto (1914-1980)
- Fleming, John Adam (1877-1956)
- Fleming, Williamina Paton Stevens (1857-1911)
- Flemløse, Peder Jakobsen (1554-1598)
- Fludd, Robert (1574-1637)
- Foerster, Wilhelm Julius (1832-1921)
- Foggini, Giulio (16--? - 17--?)
- Fontenelle, Bernard le Bouyer de [Bernhard le Bovier de] (1657-1757)
- Forbes, George (1849-1936)
- Forest, Lee de (1873-1961)
- Forster, Thomas Ignatius Maria (1789-1860)
- Foscarini, Paolo Antonio (1565-1616)
- Foucault, Jean Bernard Léon (1819-1868)
- Fourier, Jean Baptiste Joseph (1768-1830)
- Fowler, Alfred (1868-1940)
- Fowler, William Alfred (1911-1995)
- Fracastoro, Girolamo (ca. 1478-1553)
- Fraenkel, Adolf Abraham Halevi (1891-1965)
- Franck, James (1882-1964)
- Francoeur, Louis Benjamin (1773-1849)
- Franklin, Benjamin (1706-1790)
- Franz, Joseph (1704-1776)
- Fraunhofer, Joseph von (1787-1826)
- Fredga, Kerstin (b. 1935)
- Fredholm, Erik Ivar (1866-1927)
- Freeman, Thomas (?-1821)
- Frenet, Jean Frédéric (1816-1900)
- Fresnel, Augustin (1788-1827)
- Freundlich, Erwin Finlay (1885-1964)
- Freycinet, Louis Claude Desaulses de (1779-1842)
- Friedman, Herbert (b. 1916)
- Friedmann [Fridman], Aleksandr [Alexander] Aleksandrovich (1888-1925)
- Friedrich II. [Frederick II] (1194-250)
- Friedrich III. (1415-1493)
- Frisi, Paolo (1728-1784)
- Frost, Edwin Brant (1866-1935)
- Frost, Robert Lee (1874-1963)
- Furber, Thomas Frederick (1855-1924)
- Fuss, Nicolaus (1755-1826)
Gabir ben Aflah: see Jabir ibn Aflah
- Gabor, Dennis (1900-1979)
- Gagarin, Yuri Alekseyevich (1934-1968)
- Gale, Walter Frederick (1865-1945)
- Galilei, Galileo (1564-1642)
- Galle, Johann Gottfried (1812-1910)
- Galois, Evariste (1811-1832)
- Gamow, George (1904-1968)
- Ganesa (1507-after 1564)
Gaposchkin, Cecilia Payne: see Payne-Gaposchkin, Cecilia (1900-1979)
- Gascoigne, Sidney Charles (b. 1915)
- Gascoigne, William (1621-1644)
- Gassendi [Gassend; Gassendy], Pierre (1592-1655)
- Gathmann, Louis (1843-1917)
- Gaubil, Antoine (1689-1759)
- Gauß [Gauss], Carl Friedrich (1777-1855)
- Gay-Lussac, Joseph-Louis (1778-1850)
Geber Hispalensis: see Jabir ibn Aflah
- Geiger, Hans (1882-1945)
- Gellibrand, Henry (1597-1636)
- Geminus (ca. 130 BC - ca. 70 BC)
- Gemma Frisius, Reiner [Regner; Regnier] (1508-1555)
- Gentner, Wolfgang (1906-1980)
Georg von Peuerbach: see Peurbach, Georg von (1423-1461)
- George II, King of England (1683-1760)
- George of Trebizond [Georg von Trapezunt] (c.1395-c.1486)
- Gerard of Cremona [Germ. Gerhard von Cremona] (ca.1114-1187)
- Gerbert of Aurillac (ca. 946-1003)
- Gerbillon, Jean-François (1654-1707)
- Germain, Sophie (1776-1831)
Gersonides: see Levi ben Gerson (1288-1344)
- Getaldic [Ghetaldi], Marin [Marino] (1568-1626)
Ghazali: see al-Ghazali, Abu Hamid (1058-1128)
- Giacconi, Riccardo (b. 1931)
- Gibbs, Josiah Willard (1839-1903)
- Gilbert [Gilberd], William (1544-1603)
- Gill, David (1843-1914)
- Gilruth, Robert Rowe (b. 1913)
- Giovanelli, Ronald Gordon (1915-1984)
- Glaisher, James Whitbread Lee (1848-1928)
- Glazenap [Glasenapp], Sergej Pavlovich [von] (1848-1937)
- Gleißberg, Wolfgang (1903-1986)
- Glenn, John Herschel, Jr. (b. 1921)
- Goddard, Robert H. (1882-1945)
- Goethe, Johann Wolfgang von (1749-1832)
- Gold, Thomas (b. 1920)
- Goldberg, Leo (1918-1987)
- Goldmark, Peter Carl (1906-1977)
- Goldstein, Eugen (1850-1930)
- Gompertz, Benjamin (1779-1865)
- Goodricke, John (1764-1786)
- Gothus, Laurentius Paulinus (1565-1646)
- Gottlieb, Kurt (1910-1995)
- Gould, Benjamin Apthorp (1824-1896)
- Graff, Kasimir Romuald (1878-1950)
- Graham, George (ca. 1674-1751)
- Grandami, Jaques (1588-1672)
- Grandi, Luigi Guido (1671-1742)
- Grant, Kerr (1878-1967)
- Grassi, Orazio (1583-1654)
- Gray, Stephen (1666-1736)
- Green, George (1793-1841)
- Greenstein, Jesse Leonard (b. 1909)
- Gregory XIII, Pope [Germ. Papst Gregor XIII.; orig. Ugo Buoncompagni] (1502-1585)
- Gregory of Tours [orig. Georgius Florentius; Germ. Gregor von Tours] (538/9-593/4)
- Gregory [Gregorie], David (1659-1708)
- Gregory [Gregorie], James (1638-1675)
- Grieve, Richard A.F. (20th c.)
- Grimaldi, Francesco Maria (1618-1663)
- Grimble, Arthur Francis (1888-1956)
- Grindel, Carlo (ca.1780-1854)
- Grisogono, Federico [Federicus De Chrysogonius] (1472/73-1538)
- Grosseteste, Robert (ca. 1168-1253)
- Grueber, Johannes (1623-1680)
- Gruithuisen, Franz von Paula (1774-1852)
- Grunsfeld, John M. (b. 1958)
- Guarini, Guarino (1642-1683)
- Guericke [Gericke], Otto von (1602-1686)
- Guglielmini, Giovanni Battista (1763-1817)
- Guidoni, Umberto (b. 1954)
- Guillaume d'Auvergne: see William of Auvergne (ca. 1180-1249)
- Guldin, Paul (1577-1643)
- Gunter, Edmund (1581-1626)
- Guthnick, Paul (1879-1947)
- Gyldén, Johan August Hugo (1841-1896)
- Habash al-Hasib (?-c.870)
- Hadley, John (1682-1744)
- Hagen, Johann Georg (1847-1930)
Haiyan: see Ibn Haiyan, Jabir (?-803)
- Hakluyt, Richard (1552(?)-1616)
- Hale, George Ellery (1868-1938)
- Hall, Asaph (1829-1907)
- Haller von Hallerstein, Augustin (1703-1774)
- Halley, Edmond (1656-1742)
- Halma, Nicholas (1755-1828)
- Hamilton, Laurentine (1826-1882)
- Hamilton, William Rowan (1805-1865)
- Hansen, Peter Andreas (1795-1874)
- Hansteen, Christopher (1784-1873)
- Hargrave, Lawrence (1850-1915)
- Harper, William Edmund (1878-1940)
- Harper, William Rainey (1856-1906)
- Harrington, Roy (b. 1934)
- Harriot, Thomas (ca.1560-1621)
- Harris, Bertrand John (1925-1975)
- Harrison, John (1693-1776)
- Hartmann, Georg (1489-1564)
- Hartmann, Johannes (1568-1631)
- Hartmann, Johannes Franz (1865-1936)
- Hartner, Willy (1905-1981)
- Hassel, Olaf (1898-1972)
- Hasselberg, Klas Bernhard (1848-1922)
- Hausdorff, Felix (1869-1942)
- Hawking, Stephen W. (b. 1942)
- Hawley, Steven A. (b. 1951)
- Hayford, John Fillmore (1868-1925)
- Hazard, Cyril (20th c.)
- Heaviside, Oliver (1850-1925)
- Hecataeus of Miletus [Hecateo; Hecateus; Hekataios] (ca. 550 BC - ca. 480 BC)
- Heckmann, Otto Hermann Leopold (1901-1983)
- Hegel, Georg Wilhelm Friedrich (1770-1831)
Heinrich der Seefahrer: see Henry the Navigator (1394-1460)
- Heinrich von Langenstein [Heinrich de Langenstein; Engl. Henry of Langenstein] (ca.1325-1397)
- Heis, Eduard (1806-1877)
- Heisenberg, Werner Karl (1901-1976)
Hekataios: see Hecataeus of Miletus (ca. 550 BC - ca. 480 BC)
- Hell [Höll], Maximilian [Miksa] (1720-1792)
- Hellant, Anders (1717-1789)
- Helmert, Friedrich Robert (1841-1917)
- Helmholtz, Hermann Ludwig Ferdinand von (1821-1894)
- Helmont, Johannes Baptista Van (1579-1644)
- Henderson, Thomas (1798-1844)
- Hengler, Lorenz [Engl. also Lawrence] (1806-1858)
Henry of Langenstein: see Heinrich von Langenstein (ca.1325-1397)
- Henry the Navigator [Heinrich der Seefahrer] (1394-1460)
- Henry, Joseph (1797-1878)
- Hepperger, Josef von, zu Tirschtenberg und Hoffensthal (1855-1928)
- Heraclides of Heraclea Pontus (ca. 388 BC - 315 BC)
- Heracleitus of Ephesus (ca. 540 BC - ca. 475 BC)
- Herbig, George Howard (b. 1920)
- Herigone, Pierre (? - ca. 1643)
- Hermann von Kärnten [Hermann der Slawe; Engl.
Hermann of Carinthia; Hermann the Slav] (fl. first half 12th c.)
- Hermann von [of] Reichenau [Hermann the Lame; Hermann Contractus;
Herimanus Augiensis] (1013-1054)
- Hermann, Jakob (1678-1733)
- Hermite, Charles (1822-1901)
- Heron of Alexandria (ca.65-ca.125)
- Herr, Josef Philipp (1819-1884)
- Herrick, Edward Claudius (1811-1862)
- Herrick, Samuel (1911-1974)
- Herschel, Caroline [Karoline] Lucretia (1750-1848)
- Herschel, John Frederick William (1792-1871)
- Herschel, William [Friedrich Wilhelm; Frederick William] (1738-1822)
- Hertzsprung, Ejnar (1873-1967)
- Herz, Norbert (1858-1927)
- Herzberg, Gerhard (1904-1999)
- Herzenberg, Caroline Stuart Littlejohn (b. 1932)
- Hesiod (ca. 700 BC)
- Hess, Harry Hammond (1906-1969)
- Hess, Victor Franz (1883-1964)
- Hevelius [Hevel; Hewel; Hewelcke], Johannes [Jan] (1611-1687)
- Hewish, Anthony (b. 1924)
- Higgs, Arthur John (b. 1904)
- Hilbert, David (1862-1943)
- Hildebrand, Alan R. (20th c.)
- Hildegard of [von] Bingen (1098-1179)
- Hill, George William (1838-1914)
- Hillebrand, Karl (1861-1939)
- Hipparchus [Hipparchos; Hipparch] of Rhodes [of Nicaea; von Nikäa] (ca. 190 BC - ca. 120 BC)
- Hippasus of Metapontum [Hippasos von Metapont] (fl. c. 500 BC)
- Hjorter, Olof Petrus (1696-1750)
Hodierna: see Odierna, Gioanbatista [Giovan/Giovanni Battista] (1597-1660)
- Hoffman, Jeffrey A. (b. 1944)
- Hoffman, Samuel Kurtz (b. 1902)
- Högbom, Jan (20th c.)
- Hogg, Arthur Robert (1903-1966)
- Hogg, Frank Scott (1904-1951)
- Hogg [Sawyer Hogg, Hogg-Priestley, Sawyer-Hogg-Priestley], Helen Battles (1905-1993)
- Hohmann, Walter (1880-1945)
- Holden, Edward Singleton (1846-1914)
- Holetschek, Johann (1846-1923)
- Holmberg, Erik [Eric] Bertil (b. 1908)
- Holmboe, Bernt Michael (1795-1850)
- Homer (ca. 750 BC)
- Hooke, Robert (1635-1703)
- Hopfner, Friedrich (1881-1949)
- Horn D'Arturo, Guido (1880-1967)
- Horner, Johann Kaspar (1774-1834)
- Horrebow, Peder Nielsen (1679-1764)
- Horrocks, Jeremiah (1619-1641)
- Hortensius, Martinus [Ortensius or Van den Hove, Maarten] (1605-1639)
- Hoüel, Guillaume Jules (1823-1886)
- Hough, George Washington (1836-1909)
- Houston, Walter Scott (1912-1993)
- Houzeau de Lehaie, Jean-Charles-Hippolyte-Joseph (1820-1888)
- Hoyle, Fred (b. 1915)
- Huber [Huber-Rohner], Johann Jakob (1733-1798)
- Huber, Martin (b. 1936)
- Hubble, Edwin Powell (1889-1953)
- Hudde, Johann [Jan] van Waveren (1628-1704)
- Huggins, Margaret Lindsay Murray (1848-1915)
- Huggins, William (1824-1910)
- Hulse, Russell A. (b. 1950)
- Hulst, Hendrik van de (b. 1918)
- Humason, Milton La Salle (1891-1972)
- Humbert, Pierre Marie (1891-1953)
- Humboldt, Alexander von (1769-1859)
- Humboldt, Wilhelm von (1767-1835)
- Hutton, Charles (1737-1823)
- Hutton, James (1726-1797)
- Huxley, Leonard George Golden (1902-1988)
- Huygens, Christiaan (1629-1695)
- Hypatia of Alexandria (370-415)
- Hypsicles of Alexandria [Hypsikles von Alexandria] (c. 190 BC - c. 120 BC)
- Ibn Haiyan, Jabir (?-803)
Ibn Qurra: see Thabit Ibn Qurra (836-901)
Ibn Qurra: see Ibrahim, ibn Sinan ibn Thabit ibn Qurra (908-946)
- Ibn Rushd [Averroes; Abul Walid Mahommed Ibn Achmed, Ibn Mahommed Ibn Roschd] (1128-1198)
- Ibn Sina [Avicenna] (980-1037)
- Ibrahim, ibn Sinan ibn Thabit ibn Qurra (908-946)
- Ingalls, Albert (1888-1958)
- Inghirami, Giovanni (1779-1851)
- Inman, James (1776-1859)
- Isidore of Seville [Germ. Isidor von Sevilla] (ca.560-636)
- Israel, Werner (b. 1931)
- Ivory, James (1765-1842)
- Jabir ibn Aflah [Gabir ben Aflah; Geber Hispalensis], al-Ishbili Abu Muhammad (c.1100-c.1160)
Jabir Ibn Haiyan (?-803): see Ibn Haiyan
- Jacobi, Carl Gustav Jacob (1804-1851)
- Jaeger, John Conrad (1907-1979)
- Jansky, Karl Guthe (1905-1950)
- Janssen, Pierre Jules César (1824-1907)
- Jaschek, Walter (1912-1980)
- Jastrow, Robert (b. 1925)
- Jean de Counnout [Jean de Connaught; Jean de Saxonia] (fl. 1331-1355)
- Jeans, James Hopwood (1877-1946)
- Jeffreys, Sir Harold (1891-1989)
- Jelinek, Carl (1822-1876)
- Jernigan, Tamara E. (b. 1959)
- Joannes Danko [Joannes de Danekowe; Jean de Saxonia; Jean de Saxe] (fl. 1297-1323)
- Johannes de Sacrobosco [de Sacro Bosco; John of Holywood] (ca.1195-1256)
- Johannes von Gmunden [Johannes von Gmünd;
Engl. John of Gmunden] (ca.1380/84-1442)
- John XXI, Pope [orig. Peter Juliani] (1215(?)-1277)
- John Damascene (ca.676-754/787)
- John, Fritz (1910-1994)
- Johns, G.F. (18--? - 19--?)
- Johnson, Harold Lester (1921-1980)
- Johnson, Raynor Carey (1901-1987)
- Jones, Damien (20th c.)
Jones, Harold Spencer: see Spencer Jones, Harold (1890-1960)
- Jones, Thomas D. (b. 1955)
- Jones, William (1675-1749)
- Jordanus de Nemore [Jordanus Nemorarius; Nemoratius; Le Forestier]
[= Jordanus Saxo; Jordanus of Saxony ?] (? - 1237 (?))
- Joscelyne, Henry Maurice (1860- ?)
- Joy, Alfred Harrison (1882-1973)
- Jung, Carl Gustav (1875-1961)
- Jungius, Joachim (1587-1657)
- Jüttner, Josef (1775-1848)
- Kaiser, Frederik [Frederick] (1808-1872)
- Kaiser, Wilhelm (1895-1983)
- Kant, Immanuel (1724-1804)
- Kapahi, Vijay K. (1944-1999)
- Kapteyn, Jacobus Cornelius (1851-1922)
- Kármán, Theodore [Todor] von (1881-1963)
- Kästner [Kaestner], Abraham Gotthelf (1719-1800)
Kastner, Caspar: see Castner, Caspar (1655-1709)
- Kater, Henry (1777-1835)
- Kay, Joseph Henry (1815?-1875)
- Keckermann, Bartholomew (1571/73-1609(?))
- Keeler, James Edward (1857-1900)
- Keill, John (1671-1721)
- Keldysh, Mstislav Vsevolodovich (1911-1978)
- Kellner, Carl (1826-1855)
Kelvin, Lord: see Thomson, William (1824-1907)
- Kemble, Lucian (1922-1999)
- Kennedy, Alexander Lorimer (1889-?)
- Kepler, Johannes (1571-1630)
- Kern, Johann (1895-1975)
- Kerr, Frank John (b. 1918)
- Khayyam [al-Khayyam], Omar [Abu ol-Fath ebn-Ebrahim 'Omar ol-Khayyami of Nishapur] (ca.1044-ca.1123)
- Kiddinu (340 BC - ?)
- Kiepenheuer, Karl-Otto [Karl Otto] (1910-1975)
- Kindlimann, Conrad (1849-1929)
- King, Phillip Parker (1791-1856)
- Kingman, John Frank Charles (b. 1939)
- Kino, Eusebio Francisco (c.1644-1711)
- Kirch, Christfried (1694-1740)
- Kirch, Gottfried (1639-1710)
- Kirch, Maria Margarethe, née Winckelmann (1670-1720)
- Kircher, Athanasius (1601-1680)
- Kirchhoff, Gustav Robert (1824-1887)
- Kirkwood, Daniel (1814-1895)
- Kivelson, Margaret Galland (b. 1928)
- Klein, Felix Christian (1849-1925)
- Klinkerfues, Ernst Friedrich Wilhelm (1827-1884)
- Knibbs, George Handley (1858-1929)
- Knorre, Ernst Christoph Friedrich (1759-1810)
- Knorre, Karl Friedrich (1801-1883)
- Knorre, Viktor (1840-1919)
- Koffler, Andreas (1603-1651)
- Kögler, Ignaz [Ignatius] (1680-1746)
- Kollar, Rüdiger (b. 1925)
- Koller, Marian Wolfgang (1792-1866)
- Kolmogorov, Andrey Nikolayevich (1903-1987)
Kolumbus: see Columbus, Christopher (1451-1506)
- König, Albert (1871-1946)
- König, Franz Niklaus (1765-1832)
- Konkoly Thege, Miklos (1842-1916)
- Konrad von [of] Megenberg (ca.1309-1374)
- Korff, Serge Alexander (1906-1989)
- Korolyov [Koroljow], Sergej [Sergey, Sergei] Pavlovich [Pawlowitsch] (1907-1966)
- Kovalevskaya [Kowalewskaja], Sofia [Sophia] Vasilyevna [Wassiljewna] (1850-1891)
- Kraus, John (b. 1910)
- Kreil, Karl (1798-1862)
- Kruskal, Martin David (b. 1925)
- Krylov, Aleksej Nikolaevich (1863-1945)
- Kuffner, Moriz von (1854-1939)
- Kuhn, Thomas Samuel (1922-1996)
- Kuiper, Gerard Peter (1905-1973)
- Kumagusu, Minakata (1867-1941)
- Kutter, Anton (1903-1985)
- La Condamine, Charles Marie de (1701-1774)
- La Hire, Gabriel-Philippe de [Philippe II] (1677-1719)
- La Hire, Philippe de [Philippe I] (1640-1718)
- Labeyrie, Antoine (20th c.)
- Lacaille, Nicholas [Nicolas] Louis de (1713-1762)
Lacondamine: see La Condamine, Charles Marie de (1701-1774)
- Lacroix, Sylvestre Francois (1765-1843)
- Laflèche, Louis-François Richer (1818-1898)
- Lagrange, Joseph-Louis (1736-1813)
- Laisant, Charles Ange (1841-1920)
- Lalande, Joseph-Jérôme de (1732-1807)
- Lamb, Horace (1849-1934)
- Lambert, Johann Heinrich (1728-1777)
- Lamé, Gabriel (1795-1870)
- Lamont, Johann von (1805-1879)
- Lanczos, Cornelius (1893-1974)
- Landau, Lev Davidovich (1908-1968)
- Landen, John (1719-1790)
- Lane, David J. (20th c.)
- Langley, Samuel Pierpont (1834-1906)
- Langren [Langrenus], Michael Florent van [Michael Florentius] (ca.1600-1675)
- Lansberge, Philip van [Lansbergen, Philips] (1561-1632)
- Laplace, Pierre-Simon (1749-1827)
- Lardner, Dionysius (1793-1859)
- Larmor, Joseph (1857-1942)
- Lassell, William (1799-1880)
- Lasser, David (b. 1902)
- Laßwitz [Lasswitz], Kurd [Pseud.: Velatus] (1848-1910)
Lauchen, Georg Joachim von: see Rheticus
- Laue, Max von (1879-1960)
- Lauritsen, Charles Christian (1892-1968)
- Lauritsen, Thomas (1915-1973)
- Lavanha, Joao Baptista (1550-1624)
- Lavoisier, Antoine-Laurent (1743-1794)
- Le Bel, Joseph Achille (1847-1930)
- Le Paige, Constantin Marie (1852-1929)
Le Verrier: see Leverrier
- Leavitt, Henrietta Swan (1868-1921)
- Lebesgue, Henri Léon (1875-1941)
- Lee, John (? - ?)
- Lee, Tsung-Dao (b. 1926)
- LeFevre [Le Fèvre; LeFebvre], Jean (1652-1706)
- Legendre, Adrien-Marie (1752-1833)
- Leibniz, Gottfried Wilhelm von (1646-1716)
- Lemaître, Georges Edouard, Abbé (1894-1966)
- Lemay, Damien (20th c.)
- Lemonnier, Pierre Charles (1715-1799)
- Lenehan, Henry Alfred (1843-1908)
- Leonardo da Vinci (1452-1519)
- Leone, Salvatore (1917-1981)
- Leonov, Alexey Arkhipovich (b. 1934)
- Leopoldo de' Medici (1617-1675)
- Lépaute, Nicole-Reine Etable, née de la Briére (1723-1788)
- Leucippus of Miletus [Leukippos; Leukipp] (ca. 480 BC - ca. 420 BC)
- Leuschner, Armin Otto (1868-1953)
- Leverrier [Le Verrier], Urbain Jean Joseph (1811-1877)
- Levi ben Gerson [Gersonides] (1288-1344)
- Levi-Civita, Tullio (1873-1941)
- Levy, David H. (b. 1948)
- Lewis, David (b. 1919)
- Lewis, Sir George Cornewall (1806-1863)
- Lexell, Anders Johan (1740-1784)
- Ley, Willy (1906-1969)
- Libby, Willard (1908-1980)
- Lichtenberg, Georg Christoph (1744-1799)
- Lick, James (1796-1876)
- Liesganig, Joseph (1719-1799)
- Lifshitz, Evgenij Mikhajlovich (1915-1985)
- Lightfoot, John B. (1602-1675)
- Lilius, Aloisius (1510-1576)
- Lin, Chia Chiao (b. 1916)
- Lindbergh, Charles Augustus (1902-1974)
- Lindblad, Bertil (1895-1965)
- Lindelöf, Lorenz Leonard (1827-1908)
- Lindemann, Adolph (1884-1928)
- Lindenau, Bernhard August von (1779-1854)
- Lindhagen, Daniel Georg (1819-1906)
- Lindstedt, Anders (1854-1939)
- Lineberger, William Carl (b. 1939)
- Liouville, Joseph (1809-1882)
- Lipperhey [Lippershey], Hans [Jan] (1570?-1619)
- Lipschitz, Rudolf Otto Sigismund (1832-903)
- Littrow, Joseph Johann (1781-1840)
- Littrow, Karl Ludwig von (1811-1877)
- Liu Xin (1st c. BC - 1st c. AD)
- Ljungberg, Jöns Mattias (1748-1812)
- Lobachevskij [Lobachevsk[i]y; Lobatschewski], Nikolaj [Nikolai; Nikolay] Ivanovich [Iwanowitsch] (1792-1856)
- Locke, John Lambourne (b. 1921)
- Lockyer, Joseph Norman (1836-1920)
- Lodén, Kerstin and Lars Olof (20th c.)
- Logan, James (1674-1751)
- Lomberg, Jon (b. 1948)
- Lomonosov [Lomonossow], Mikhail Vasilyevich [Michail Wassiljewitsch] (1711-1765)
- Longberg, Kristen Sorensen [Longomontanus; Severin, Christian] (1562-1647)
- Loomis, Elias (1811-1889)
- Lord, Francis (b. 1916)
- Lorentz, Hendrik Antoon (1853-1928)
- Love, Augustus Edward Hough (1863-1940)
- Lovelace, Augusta Ada King, Countess of (1815-1852)
- Lovell, Alfred Charles Bernard (b. 1913)
- Lovell, James Arthur (b. 1928)
- Lovering, John Francis (b. 1930)
- Lowell, Abbott Lawrence (1856-1943)
- Lowell, Percival (1855-1916)
- Loys de Chéseaux, Philippe (1718-1751)
- Lu, Edward Tsang (b. 1963)
- Lubbock, Sir John William (1803-1865)
- Lucas, Francois Edouard Anatole (1842-1891)
- Lucian (ca.117-ca.180)
- Lucretius (1st c. BC)
- Lüroth [Lueroth], Jacob (1844-1910)
- Lundmark, Knut Emil (1889-1958)
- Luyten, Willem Jacob (1899-1994)
- Luzin, Nikolai Nikolaevich (1883-1950)
- Lyapunov [Ljapunow], Aleksandr [Alexandr] Mikhajlovich [Michailowitsch] (1857-1918)
- Lyell, Charles (1797-1875)
- Lyman, Theodore (1874-1954)
- Lynden-Bell, Donald (b. 1935)
- Lyot, Bernard Ferdinand (1897-1952)
Mac Laurin, Colin: see Maclaurin, Colin
- MacDonnell, William John (1842-1910)
- Mach, Ernst (1838-1916)
- Maclaurin, Colin (1698-1746)
- Mädler, Johann Heinrich (1794-1874)
- Madsen, Hans Frandsen (1843-1937)
- Maestlin, Michael (1550-1631)
- Maffei, Francesco Scipione (1675-1755)
- Magarey, Thomas (1825-1902)
- Magellan, Ferdinand [Port. Magalhaes, Fernão] (c.1480-1521)
- Maggini, Mentore (1890-1941)
- Magini, Giovanni Antonio (1555-1617)
- Magnenus [Magnen, Magnien], Johann Chrysostom (ca.1590-ca.1679)
- Magnitsky, Leonty Filippovich (1669-1739)
- Mairan, Jean Jacques d'Ortous [Dortous] de (1678-1771)
- Malapert, Charles (1581-1630)
- Malin, David (b. 1952)
- Malina, Frank J. (1912-1981)
- Mallet, Fredrik (1728-1797)
- Malmquist, Karl Gunnar (1893-1982)
- Malus, Etienne Louis (1775-1812)
- Malvasia, Cornelio (1603-1664)
- Mamun [al-Mamun], Abdalla[h] al (786-833)
- Manfredi, Eustachio (1674-1739)
- Manilius, Marcus (fl. A.D. 10)
- Mansur, Abu Nasr (970-1036)
- Maraldi, Giacomo Filippo (1665-1729)
- Marci of Kronland, Joh. M. [Marcus Marci] (1595-1667)
- Marinoni, Johann Jakob [von] (1676-1755)
- Mariotte, Edme (ca.1620-1684)
- Marius, Simon (1573-1624)
- Markgraf [Marcgraf], Georg (1610-1644)
- Markowitz, William (1907-1998)
- Marrison, Warren (1896-1980)
- Martyn, David Forbes (1906-1970)
- Maskelyne, Nevil (1732-1811)
- Mason, Charles (1730-1787)
- Mason, Charles Max (1877-1961)
- Massey, Harrie Stewart Wilson (1908 - 1983)
- Mathieu, Claude Louis (1783-1875)
- Mathieu, Emile Léonard (1835-1890)
- Mauderli, Sigmund (1876-1962)
- Maupertuis, Pierre Louis Moreau de (1698-1759)
- Maurolico [Marul, Marol], Francesco (1494-1575)
- Maury, Matthew Fontaine (1806-1873)
- Maxwell, James Clerk (1831-1879)
- Mayer, Christian (1719-1783)
- Mayer, Tobias (1723-1762)
- Mayr [Marius], Simon (1573-1624)
- Mazzolini, Sylvester [Mozolini; Prierias] (1460-1523)
- McAulay, Alexander (1863-1931)
- McCrea, William Hunter (1904-1999)
- Medici (family)
- Medina, Pedro de (ca.1493-ca.1567)
- Megele, Giuseppe (1740-1816)
- Meissel, Daniel Friedrich Ernst (1826-1895)
- Meissner, Karl Wilhelm (1891-1959)
- Melanchthon, Philipp (1497-1560)
- Melanderhjelm, Daniel (1726-1810)
- Melissus of Samos (ca. 440 BC)
- Mellor, David Paver (1903-1980)
- Mengoli, Pietro (1625-1686)
- Menelaus of Alexandria [Menelaos von Alexandria] (ca. 70 - ca. 130)
- Menzel, Donald (1901-1976)
- Mercator, Gerardus [Gerhard Kremer] (1512-1594)
- Mercator, Nicolaus [Niklaus Kauffman] (ca.1619-1687)
- Merfield, Zeus Amphion (1899-1965)
- Merrill, Paul Willard (1887-1961)
- Merrill, Winifred Edgerton (1862-1951)
- Mersenne, Marin (1588-1648)
- Merz, Georg (1793-1867)
- Meshchersky, Ivan Vsevolodovich (1859-1935)
- Messier, Charles (1730-1817)
- Metius, Adriaan (1571-1635)
- Meton of Athens (ca. 440 BC - ?)
- Meyerstein, Moritz (1808-1882)
- Michell, John (1724-1793)
- Michelson, Albert (1852-1931)
- Miller, David (19th c.)
- Millikan, Robert Andrews (1868-1953)
- Millman, Peter Mackenzie (1906-1990)
- Mills, Bernard Yarnton (b. 1920)
- Milne, Edward Arthur (1896-1950)
- Mineo, Corradino (1875-1960)
- Mineur, Henri (1899-1954)
- Minkowski, Hermann (1864-1909)
- Minkowski, Rudolph Leo Bernhard (1895-1976)
- Minnaert, Marcel Gilles Jozef (1893-1970)
- Mitchell, Maria (1818-1889)
- Möbius, August Ferdinand (1790-1868)
Mohammad Bin Musa al-Khawarizmi (?-840): see al-Khawarizmi
Mohammad Ibn Zakariya al-Razi (864-930): see al-Razi
- Möller, Didrik Magnus Axel (1830-1895)
- Molyneux, William (1656-1698)
- Montanari, Geminiano (1633-1687)
- Monte, Guidobaldo del (1545-1607)
- Montmor, Henri Louis Habert de (ca.1600-1679)
- Montucla, Jean Etienne (1725-1799)
- Moore, Francis (1657-ca.1715)
- Moore, Jonas (1627-1679)
- Moore, Patrick Alfred Caldwell (b. 1923)
- Morgan, William Wilson (1906-1994)
- Morin, Jean-Baptiste (1583-1656)
- Morley, Edward (1838-1923)
- Morrison, Philip (b. 1915)
- Moulton, Forest (1872-1952)
- Mouton, Gabriel (1618-1694)
- Mueller, George E. (b. 1918)
- Mukai Genshô (1609-1677)
Müller, Johann or Johannes: see Regiomontanus (1436-1476)
- Münster, Sebastian (1488-1552)
- Mutis, José Celestino (1732-1808)
- Mydorge, Claude (1585-1647)
- Naljeskovic, Nikola (?-1587)
- Napier [Neper and numerous other forms], John (1550-1617)
- Narlikar, Jayant Vishnu (b. 1938)
- Nasir al-Din al-Tusi (1201-1274)
- Nasmyth, James (1808-1890)
- Neander, Ernst Albin (1878-1928)
- Neander, Michael (1529-1581)
- Needham, Joseph (1900-1995)
- Neile, William (1637-1670)
- Nekrasov, Aleksandr Ivanovich (1883-1957)
- Nelson, Jerry Earl (b. 1944)
Nemore [Nemorarius]: see Jordanus de Nemore (? - 1237 (?))
- Nernst, Walther Hermann (1864-1941)
- Neugebauer, Otto (1899-1990)
- Neumann, Franz von (1844-1905)
- Neumann, Franz Ernst (1798-1895)
- Neumann, John von (1903-1957)
- Neumayer, Georg Balthazar (1826-1909)
- Newcomb, Simon (1835-1909)
- Newton, Isaac (1643-1727)
- Nicholas of Cusa [Nicolaus Cryffts, Nicolaus de Cusa, Nicolaus von Cues,
Cusanus] (1401-1464)
Nicolaus de Cusa: see Nicholas of Cusa (1401-1464)
- Nicholson, Seth Barnes (1891-1963)
- Nicollier, Claude (b. 1944)
- Nikoloff, Ivan (b. 1921)
- Nilson, Peter (1937-1998)
- Nobel, Alfred (1833-1896)
- Noether, Amalie Emmy (1882-1935)
- Noether, Max (1844-1921)
Nonius, Petrus: see Nuñez Salaciense, Pedro (1502-1578)
- Nordmarck, Zakaria (1751-1828)
- Nordström, Gunnar (1881-1923)
- Norman, Robert (16th c.)
- Norwood, Richard (1590-1676)
- Nossiter, Harry (18--? - 19--?)
- Nostradamus (1503-1566)
- Notker Labeo (c.950-1022)
- Novikov, Sergej Petrovich (b. 1938)
- Nuñez Salaciense, Pedro [Nunes, Pedro; Nonius, Petrus] (1502-1578)
- Oberth, Hermann (1894-1989)
- Odierna [Hodierna], Gioanbatista [Giovan or Giovanni Battista] (1597-1660)
- Oenopides of Chios (c. 490 BC - c. 420 BC)
- Öhman, Karl Yngve (1903-1988)
- Oja, Tarmo (20th c.)
- Oken, Lorenz (1779-1851)
- Olbers, Heinrich Wilhelm (1758-1840)
- Oliver, Bernard M. [Barney] (1916?-1995)
Omar Khayyam: see Khayyam, Omar (ca.1044-ca.1123)
- Oort, Jan Hendrik (1900-1992)
- Öpik (Opik), Ernst Julius (1893-1985)
- Oppenheim, Samuel (1857-1928)
- Oppenheimer, Julius Robert (1904-1967)
- Oppolzer, Theodor von (1841-1886)
- Oresme, Nicole (1320-1382)
- Oriani, Barnaba [Barnabé] (1752-1832)
- Osiander, Andreas (1498-1552)
- Osipovskij [Osipovsky], Timofej [Timofei] Fedorovich (1765-1832)
- Osterbrock, Donald Edward (b. 1924)
- Oughtred [Owtred], William (1575-1660)
- Ozanam, Jacques (1640-1717/18)
- Paczynski, Bohdan (b. 1940)
- Page, Thornton L. (1913-1996)
- Painlevé, Paul (1863-1933)
- Palisa, Johann (1848-1925)
- Palitzsch, Johann Georg (1723-1788)
- Palmieri, Luigi (1807-1896)
- Paracelsus [Theophrastus Philippus Aureolus Bombastus von Hohenheim] (ca. 1493 - 1541)
- Parent, Antoine (1666-1716)
- Parise, Ronald A. (b. 1951)
- Parker, Eugene Newman (b. 1927)
- Parker, Louis (b. 1906)
- Parkinson, Wilfred Charles (1884-1964)
- Parmenides of Elia (ca. 515 BC - after 450 BC)
- Parsons, William, 3rd Earl of Rosse [Lord Rosse] (1800-1867)
- Pascal, Blaise (1623-1662)
- Pascal, Étienne (1588-1651)
- Patterson, Clair Cameron (1922-1995)
- Pawsey, Joseph Lade (1908-1962)
- Payne-Gaposchkin, Cecilia Helena (1900-1979)
- Peacock, George (1791-1858)
- Pearce, Joseph Algernon (1893-1988)
- Pease, Francis G. (1881-1938)
- Pedersen, Olaf (1920-1997)
- Peebles, Phillip James E. (b. 1935)
- Peirce, Benjamin (1809-1880)
- Peiresc, Nicolas Claude Fabri de (1580-1637)
- Pelerin de Prusse (14th c.)
- Pell [Pellius], John (1611-1685)
- Penzias, Arno Allan (b. 1933)
- Perelli, Tommaso (1704-1783)
- Perez de Vargas, Bernardo (before 1560 - after 1569)
- Perrault, Claude (1613-1688)
- Perrine, Charles (1867-1951)
- Perry, Stephen Joseph (1833-1889)
- Petit, Pierre (1598-1677)
- Petzval, Józeph Miksa (1807-1891)
- Peurbach [Peuerbach, Purbach], Georg von (1423-1461)
- Philolaus of Tarentum or Croton (ca. 480 BC - ?)
- Piazzi, Giuseppe (1746-1826)
- Picard, Jean (1620-1682)
- Piccolomini, Alessandro (1508-1578)
- Pickering, Edward Charles (1846-1919)
- Pickering, William Hayward (b. 1910)
- Pickering, William Henry (1858-1938)
- Pico della Mirandola, Giovanni (1463-1494)
- Pierry, Mme. du (18th century)
- Pierson, Ambroise (17--? - ?)
- Pighius [Pigghe], Albert (c.1490-1542)
- Pigot, Edward Francis (1858-1929)
- Pinchbeck, Christopher (ca.1710-1738)
- Pingré, Alexandre Guy (1711-1796)
- Piscopia, Elena Lucrezia Cornaro (1646-1684)
- Plana, Giovanni Antonio Amedeo (1781-1864)
- Planck, Max (1858-1947)
- Planman, Anders (1724-1803)
- Plaskett, John Stanley (1865-1941)
- Platina, Bartolomeo [orig. Sacchi] (1421-1481)
- Plato (428 BC - 347 BC)
- Playfair, John (1748-1819)
- Plössl, Georg Simon (1794-1868)
- Plume, Thomas (1630-1704)
- Pocock, Robert John (1889-1918)
- Poggiali, Giuseppe (19th c.)
- Poincaré, Jules Henri (1854-1912)
- Poisson, Siméon Denis (1781-1840)
- Poleni, Giovanni (1683-1761)
- Pollock, James Arthur (1865-1922)
- Pólya, George (1887-1985)
- Pons, Jean-Louis (1761-1831)
- Poretskij [Poretsky], Platon Sergeevich (1846-1907)
- Porro, Ignazio (1801-1875)
- Porta, Giambattista della (1535-1615)
- Porter, Russell (1871-1949)
- Poseidonius of Apamea (ca. 135 BC - ca. 50 BC)
- Potapenko, Gennady (1895-1979)
- Potocnik, Herman (1892-1929)
- Prigogine, Ilya (b. 1917)
- Primakoff, Henry (1914-1983)
- Priscillian (?-385?)
- Pritchett, Henry Smith (1857-1939)
- Proclus [Proklos] Diadochus (410[412?]-485)
- Prokhorov, Alexander Mikhailovich (b. 1916)
- Prony, Gaspard Clair Francois Marie Riche de (1755-1839)
- Prosperin, Erik (1739-1803)
- Ptolemy [Ptolomaeus; Ptolemaios, Klaudios] (ca.87-ca.165)
- Puiseux, Victor Alexandre (1820-1883)
Purbach: see Peurbach, Georg von (1423-1461)
- Purcell, Edward Mills (b. 1912)
- Pythagoras of Samos (580 BC - 500 BC)
- Qadi Zada, al'Rumi (1364-1436)
- Quensel, Conrad (1676-1732)
- Quetelet, Lambert Adolphe (1796-1874)
Qurra: see Thabit Ibn Qurra (836-901)
Qurra: see Ibrahim, ibn Sinan ibn Thabit ibn Qurra (908-946)
- Radcliffe, John (1650-1714)
- Ragona, Domenico (1820-1892)
- Rajewsky, Boris (1893-1974)
- Raman, Chandrasekhra Venkata (1888-1970)
- Ramsay, William (1852-1916)
- Ramsden, Jesse (1735-1800)
- Ramsey, Norman F. (b. 1915)
- Ramus, Peter (1515-1572)
- Rankine, William John Macquorn (1820-1872)
- Raphson, Joseph (1648-1715)
- Rasch, Johann (ca.1540-1615)
Rayleigh, Lord: see Strutt, John William (1842-1919)
Razi: see al-Razi, Mohammad Ibn Zakariya (864-930)
- Reael, Lorenzo (1583-1637)
- Reber, Grote (b. 1911)
- Recorde, Robert (ca. 1510 - 1558)
- Rees, Martin John (b. 1942)
- Reeves, Hubert (b. 1932)
- Regener, Erich (1881-1955)
- Regiomontanus [Müller, Johann or Johannes] (1436-1476)
- Régis, Jean-Baptiste (1663/4-1738)
- Regnér, Lars (1746 - 1810)
- Reiche, Maria (1903-1998)
- Reichenbach, Georg Friedrich von (1772-1826)
- Reichenbach, Karl Ludwig, Freiherr von (1788-1869)
- Reinhold, Erasmus (1511-1553)
- Reinhold, Erasmus (1538-1592)
- Reines, Frederick (1918-1998)
- Respighi, Lorenzo (1824-1889)
Rhaeticus: see Rheticus
- Rheita, Anton Maria Schyrlaeus (1604-1660)
- Rheticus [Rhaeticus; Lauchen, Georg Joachim von] (1514-1574)
- Ricci, Matteo (1552-1610)
- Riccioli, Giambattista [Giovanni Battista] (1598-1671)
- Ricco', Annibale (1844-1919)
- Richard of Wallingford (1291/92-1336(?))
- Richardson, Lewis Fry (1881-1953)
- Richer, Jean (1630-1696)
- Ride, Sally Kristen (b. 1951)
- Riedler, Willibald (b. 1932)
- Rimmer, William Bolton (1882-1943)
- Ritchey, Georg Willis (1864-1945)
- Rittenhouse, Benjamin (1740-1825)
- Rittenhouse, David (1732-1796)
Rivinus: see Bachmann, Augustus Quirinus (1652-1723)
- Roberts, Gilbert, Sir (1899-1978)
- Roberval, Gilles Personne de (1602-1675)
- Robie, Thomas (1689-1729)
- Robins, Benjamin (1707-1751)
- Robinson, Thomas Romney (1792-1882)
- Rocard, Yves-André (1903-1992)
- Rockwell, Willard Frederick, Jr. (1914-1992)
- Rodgers, John (1812-1882)
- Rømer [Römer, Roemer], Ole [Olaf] Christensen (1644-1710)
- Ronchi, Vasco (1897-1988)
- Rondelli, Geminiano (1652-1735)
- Röntgen [Roentgen], Wilhelm Conrad (1845-1923)
- Rooke, Lawrence (1622-1662)
- Roomen, Andriaan van (1561-1615)
- Rordorf, Johann Rudolf (1788-1854)
- Roseby, Thomas (1844-1918)
- Rosén, Per Gustaf (1838-1914)
- Rosenberg, Hans (1879-1940)
- Ross, Mrs A.D. (?-?)
- Ross, Alexander David (1883-1966)
Rosse, Lord: see Parsons, William, 3rd Earl of Rosse (1800-1867)
- Rosseland, Svein (1894-1985)
- Rossi, Bruno Benedetto (1905-1993)
- Rothmann, Christoph (1550-1599/1608)
- Rowland, Henry Augustus (1848-1901)
- Rubin, Vera Cooper (b. 1928)
- Rudolf II (1552-1612)
- Rue, Warren de la (1815-1889)
- Rukeyser, Muriel (1913-1980)
- Rümker [Rumker], Christian Carl Ludwig (1788-1862)
Rushd: see Ibn Rushd [Averroes] (1128-1198)
- Russell, Henry Chamberlain (1836-1907)
- Russell, Henry Norris (1877-1957)
- Rutherford, Ernest (1871-1937)
- Rutherfurd, Lewis Morris (1816-1892)
- Ruysch, John (c.1460-1533)
- Rylands, Thomas Glazebrook (1818-1900)
- Ryle, Martin (1918-1984)
- Sabine, Edward, Sir (1788-1883 )
- Sabliere (18th century)
Sacrobosco: see Johannes de Sacrobosco (ca.1195-1256)
- Sagan, Carl Edward (1934-1996)
- Saha, Meghnad (1893-1956)
- Saint Vincent, Gregorius [Gregory of Saint Vincent] (1584-1667)
- Salomonovich, Alexander (b. 1916)
- Salpeter, Edwin Ernest (b. 1924)
- Sandage, Allan Rex (b. 1926)
- Sands, Benjamin F. (1812-1883)
- Sang, Edward (1805-1890)
- Santini, Giovanni Sante Gaspero (1787-1877)
- Sarabhai, Vikram (1919-1971)
- Sargent, Wallace (b. 1935)
- Sarpi, Paolo (1552-1623)
- Savary, Felix (1797-1841)
- Savile, Henry (1549-1622)
Sawyer Hogg, Helen: see Hogg, Helen B.
- Scaliger, Joseph (1540-1609)
- Scarpellini, Caterina (1808-?)
- Schall von Bell, Johann Adam (1592-1666)
- Scheiner, Christoph (1575-1650)
- Scheiner, Julius (1858-1913)
- Scheuer, Peter (b. 1930)
- Schiaparelli, Giovanni Virginio (1835-1910)
- Schickard [Schickhardt], Wilhelm (1592-1635)
- Schindel, Iohannes [Andreae, Iohannes] (fl. 14th-15th c.)
- Schjellerup, Hans Karl Frederik Kristian (1827-1887)
- Schläfli, Ludwig (1814-1895)
- Schlesinger, Frank (1871-1943)
- Schmidt, Bernhard Voldemar (1879-1935)
- Schmidt, Maarten (b. 1929)
- Schoener, Johannes (1477-1547)
- Schopf, James William (b. 1941)
- Schramm, David N. (1945-1997)
- Schrödinger, Erwin (1887-1961)
- Schultán, Nathanael Gerhard af (1750-1825)
- Schuster, Arthur, Sir (1851-1934)
- Schwabe, Samuel Heinrich (1789-1875)
- Schwarzschild, Karl (1873-1916)
- Schwarzschild, Martin (1912-1997)
- Scott, William (1825-1917)
- Seares, Frederick Hanley (1873-1964)
- Secchi, Angelo (1818-1878)
- Segner, Johann Andreas (1704-1777)
- Seidel, Philipp Ludwig von (1821-1896)
- Selander, Nils Haqvin (1804-1870)
Seldowitsch: see Zel'dovich, Yakov Borisovich (1914-1987)
- Seleucus of Seleucia (ca. 190 BC - ?)
- Serpieri, Alessandro (1823-1885)
- Serret, Joseph Alfred (1819-1885)
- Sestini, Benedict (1816-1890)
Severin, Christian: see Longberg, Kristen Sorensen
- 'sGravesande, Willem Jacob (1688-1742)
- Shakerley, Jeremy (1626-ca.1655)
- Shakeshaft, John (20th c.)
- Shapley, Harlow (1885-1972)
- Shelton, Ian (b. 1958)
- Shen Kua (1031-1095)
- Shepard, Alan Bartlett, Jr. (b. 1923)
- Shklovskii, Iosif Samuilovich (1916-1985)
- Shoemaker, Eugene Merle (1928-1997)
- Shuter, William L. H. (1936-1995)
- Siegel, Carl Ludwig (1896-1981)
- Sierpinski, Waclaw (1882-1969)
- Sigüenza y Gongora, Carlos de (1645-1700)
- Silesius Lublenensis, Georgius Iobius (fl. 1610)
- Sima Qian [Ssu-ma Ch'ien] (c.145 BC - c.90 BC)
- Simson, Robert (1687-1768)
- Sisson, Jeremiah (18th c.)
- Sitter, Willem de (1872-1934)
- Sitterly, Charlotte Emma Moore (1898-1990)
- Slee, O. Bruce (20th c.)
- Slipher, Vesto Melvin ["V.M."] (1875-1969)
- Sluse [Sluze], René-Francois de (1622-1685)
- Slutskij [Slutsky; Sluzki; Sluckij], Evgenij [Evgeny; Jewgeni] Evgenievich [Jewgenjewitsch] (1880-1948)
- Smalley, George Robarts (1822-1870)
- Smith, Adam (1723-1790)
- Smith, Graham (b. 1923)
- Smith, Harlan James (1924-1991)
- Smith, Paul (19??-1995)
- Smoot, George Fitzgerald, III (b. 1945)
- Smyth, Charles Piazzi (1819-1900)
- Snel [Snell or Snellius or Snel van Royen], Willebrord (1580-1626)
- Sokolov, Yurij [Yurii; Juri] Dmitrievich [Dmitrijewitsch] (1896-1971)
- Soemmerring [Sömmerring], Samuel Thomas von (1755-1830)
- Somerville, Mary Fairfax Greig (1780-1872)
- Sommerfeld, Arnold Johannes Wilhelm (1868-1951)
- Sommerville, Duncan MacLaren Young (1879-1934)
- Sonduk (around 630 BC)
- Sonnefeld, August (1886-1974)
- Sophronius (fl. 445)
- Sosigenes of Alexandria (ca. 50 or 90 BC - ?)
- Southworth, Albert Sands (1811-1894)
- Spencer Jones, Harold (1890-1960)
- Spigl, Hyman Solomon (1911-1962)
- Spinoza [de Spinoza], Benedictus [Baruch] (1632-1677)
- Spitzer, Georg (1925-1989)
- Spitzer, Lyman, Jr. (1914-1997)
- Spole, Anders (1630-1699)
- Sporus of Nicaea (ca. 240 - ca. 300)
- Spurr, Josiah Edward (1870-1950)
- Sripati (1019-1066)
- Stampioen, Jan Jansz. de Jonge (1610- after 1689)
- Stanley, G. J. (20th c.)
- Stansel, Valentin (1621-1705)
- Staudt, Karl Georg Christian von (1798-1867)
- Stebbins, Joel (1878-1966)
- Stein, Johan W.J.A. (1871-1951)
- Steiner, Rudolf (1861-1925)
- Steinmeyer, Ferdinand (1720-1786)
- Stephan, Jean Marie Edouard (1837-1923)
- Stevin, Simon (1548-1620)
- Stewart, Matthew (1717-1785)
- Stewart, Robert Meldrum (1878-1954)
- Stibbs, Douglas Walter Noble (b. 1919)
- Stieltjes, Thomas Joannes [Jan] (1856-1894)
- Stifel, Michael (1480-1567)
- Stodola, Edwin King (1914-1992)
- Stokes, George Gabriel (1819-1903)
- Storer, Arthur (17th c.)
- Störmer, Fredrik Carl Mülertz (1874-1957)
- Streete, Thomas (1622-1689)
- Strömer, Mårten (1707-1770)
- Strömgren, Bengt Georg Daniel (1908-1987)
- Strömgren, Svante Elis (1870-1947)
- Strutt, John William [Lord Rayleigh] (1842-1919)
- Struve, Friedrich Georg Wilhelm (1793-1864)
- Struve, Gustav Wilhelm Ludwig (1858-1920 )
- Struve, Karl Hermann (1854-1920)
- Struve, Otto (1897-1963)
- Struve, Otto Wilhelm (1819-1905)
- Subbotin, Mikhail Fedorovich (1893-1966)
- Suess, Hans Eduard (b. 1909)
- Sundman, Karl Fritiof (1873-1949)
- Sunyaev, Rashid Alievich (b. 1943)
- Sutherland, William (1859-1911)
- Svanberg, Gustaf (1802-1882)
- Svanberg, Jöns (1771-1851)
- Swasey, Ambrose (1846-1937)
- Swedenborg, Emanuel (1688-1772)
- Sylvester, James Joseph (1814-1897)
- Szalay, Sandor (b. 1909)
- Szerdahely, Georg (1740-1808)
- Szilard, Leo (1898-1964)
Tabari: see Ali Ibn Rabban al-Tabari (838-870)
- Tacquet, Andreas [Andr&eacut;] (1612-1660)
- Talbot, William Henry Fox (1800-1877)
- Tamm, Nils A. O. (1876-1957)
- Tanaka, Haruo (b. 1922)
- Tannery, Paul (1843-1904)
- Tarde, Jean (1561/62-1636)
- Tasso, Torquato (1544-1595)
- Tayler, Roger (1929-1997)
- Taylor, Geoffrey Ingram, Sir (1886-1975)
- Taylor, Janet (19th century)
- Taylor, Joseph H. (b. 1941)
- Tebbutt, John (1834-1916)
- Teller, Edward (b. 1908)
- Tempel, Ernst Wilhelm Leberecht (1821-1889)
- Tenskwatawa (?-1837)
- Tereshkova, Valentina (b. 1937)
- Tesla, Nikola (1856-1943)
- Thabit Ibn Qurra (836-901)
- Thales of Miletus [Thales von Milet] (624 BC - 546 BC)
- Theodosius of Bithynia (ca. 160 BC - ca. 100 BC)
- Theon of Alexandria (ca. 335 - ca. 395)
- Theon of Smyrna (ca. 100 - ca. 160)
- Thiele, Thorvald Nicolai (1838-1910)
- Thierry of Freburg [Thierry of Saxony] (fl. 1293-1310)
- Thom, Alexander (1894-1945)
- Thomas Aquinas (1224/25-1274)
- Thomas, Oswald (1882-1963)
- Thompson, John (1720-1783)
- Thompson, Roland Dale (1895-1950)
- Thomson, James Park (1854-1941)
- Thomson, William (1824-1907)
- Thorndike, Lynn (1882-1965)
- Thurneisser zum Thurn, Leonhard (1531-1596)
- Tiarks, Henry Frederick (1900-1995)
- Tibbon, Jacob ben Machir ibn (1236-1312)
- Tieffenthaler, Josef (1710-1785)
- Timocharis (ca. 200 BC)
- Tinseau, D'Amondans Charles de (1748-1822)
- Tisserand, Francois Félix (1845-1896)
- Titius, Johann Daniel (1729-1796)
- Toaldo, Giuseppe (1719-1797)
- Todd, Charles (1826-1910)
- Todd, Mabel Loomis (1856-1932)
- Tombaugh, Clyde William (1906-1997)
- Tompion, Thomas (ca.1639-1713)
- Torricelli, Evangelista (1608-1647)
- Toscanelli, Paolo dal Pozzo (1397-1482)
- Towneley, Richard (1629-1707)
- Townes, Charles Hard (b. 1915)
- Triesnecker, Franz von Paula [Francis a Paula] (1745-1817)
- Troughton, Edward (1753-1836)
- Trumpler, Robert Julius (1886-1956)
Tscherenkow: see Cherenkov, Pavel Alekseevich (1904-1990)
- Tschirnhaus, Ehrenfried Walter von (1651-1708)
- Tsiolkovsky [Ciolkovskij, Ziolkowski], Konstantin Eduardovich [Eduardowitsch] (1857-1935)
- Tsu Ch'ung Chi (430-501)
- Tuckerman, Frederick Goddard (1821-1873)
- Turner, Herbert Hall (1861-1930)
- Tutte, William (b. 1917)
Tycho Brahe: see Brahe, Tycho (1546-1601)
- Ulam, Stanislaw Marcin (1909-1984)
- Ulloa, Antonio de (1716-1795)
- Ulugh Beg (1394-1449)
- Unruh, William George (b. 1945)
- Unsöld, Albrecht (1905-1995)
- Urban VIII, Pope [Barberini, Maffeo] (1568-1644)
- Urdaneta, Andrés (1498-1568)
- Urey, Harold Clayton (1893-1981)
- Ussher, James (1581-1656)
- Vaiana, Giuseppe Salvatore (1935-1991)
- Vali, Hojatollah (20th c.)
- Valier, Max (1895-1930)
- Van Allen, James (b. 1914)
- van de Hulst, Hendrik Christoffel (1918-2000)
- van de Kamp, Peter (1901-1995)
- van den Bergh, Sidney (b. 1929)
- Van Heeck, Johannes (1574-16--?)
- Van Vleck, Edward Burr (1863-1943)
Vassenius: see Wassenius, Birger (1687-1771)
- Vaucouleurs, Gérard Henri de (1918-1995)
- Velikovsky, Immanuel (1895-1979)
- Verbiest, Ferdinand (1623-1688)
- Verdon, George Frederic (1834-1896)
- Vergilius of Salzburg [Virgilius; Irish Fergal, Ferghil, or Feirghil] (?-789)
- Verhulst, Pierre Francois (1804-1849)
- Verne, Jules (1828-1905)
- Vernier, Pierre (c.1580-1637)
- Vespucci, Amerigo (1451-1512)
- Vico, Francesco de (1805-1848)
- Viète [Vieta], Francois (1540-1603)
- Villalpando, Juan Battista (1552-1608)
- Vincentius Bellovacensis [Engl. Vincent of Beauvais; Germ. Vincenz von Beauvais] (c.1190-c.1264)
- Vitruvius (ca. 70 BC - ca. 25 BC)
- Viviani, Vincenzo (1622-1703)
- Vogel, Hermann Carl (1841-1907)
- Vries, Hugo de (1848-1935)
- Waerden, Bartel Leendert van der (1903-1996)
- Waineo, Thomas (1935 - 1996)
- Walch, A.T. (? - ?)
- Waldmeier, Max (b. 1912)
- Walker, Arthur Geoffrey (1909-2001)
- Wallace, William (1768-1843)
- Wallenquist, Åke Anders Edvard (1904-1994)
Wallingford: see Richard of Wallingford (1291/92-1336)
- Wallis, John (1616-1703)
- Walmesley, Charles (1722-1797)
- Walton, Ernest (b. 1903)
- Wangerin, Albert (1844-1933)
- Warburg, Aby M. (1866-1929)
- Ward, Seth (1617-1689)
- Warner, Worcester Reed (1846-1929)
- Washburn, Cadwallader Colden (1818-1882)
- Wassenius [Vassenius], Birger (1687-1771)
- Watson, James Craig (1838-1880)
- Watson-Watt, Robert (1892-1973)
- Weber, Joseph (1919-2000)
- Weber, Wilhelm Eduard (1804-1891)
- Wegener, Alfred Lothar (1880-1930)
- Wegg-Prosser, Francis Richard (1824-1911)
- Wehlau, William H. (1926-1995)
- Weierstraß [Weierstrass], Karl Wilhelm Theodor (1815-1897)
- Weinberg, Steven (b. 1933)
- Weinstein, Alexander (1897-1979)
- Weiß [Weiss], Edmund (1837-1917)
- Welser, Marc (1558-1614)
- Wendelin [Vendelinus], Gottfried (1580-1667)
- Werner, Johann (1468-1522)
- Westerlund, Bengt E. (b. 1921)
- Westfall, Richard S. (1924-1996)
- Weyl, Hermann Klaus Hugo (1885-1955)
- Wharton, George (1617-1681)
- Whipple, Fred Lawrence (b. 1906)
- Whiston, William (1667-1752)
- White, Edward John (1831-1913)
- White, Henry Seely (1861-1943)
- Whitehorne, Mary Lou (20th c.)
- Whitford, Albert Edward (b. 1905)
- Whiting, Sarah F. (1846-1927)
- Whitney, Mary Watson (1847-1921)
- Whittaker, Edmund Taylor (1873-1956)
- Widmannstätten, Alois von Beckh-
[Alois Beck, Edler von Widmannstätten] (1753/54-1849)
- Wien, Wilhelm (1864-1928)
- Wiener, Norbert (1894-1964)
- Wilczek, Frank Anthony (b. 1951)
- Wilczynski, Ernest Julius (1876-1932)
- Wilhelm IV, Landgrave of Hesse-Kassel (1532-1592)
- Wilhelm von Hirsau [Wilhelm der Selige; Engl. William of Hirsau; Blessed William] (?-1091)
- Wilkins, John (1614-1672)
- Willcox, Kenneth W. (1943-1999)
- William IV, King of England (1765-1837)
- William of Auvergne [Guillaume d'Auvergne] (ca. 1180-1249)
- William of Conches (c.1100-?)
William of Hirsau: see Wilhelm von Hirsau (?-1091)
- William of Moerbeke (c.1215-1286)
- Williams, Robley Cook (b. 1908)
- Wills, William John (1834-1861)
- Wilson, Alexander (1714-1786)
- Wilson, Benjamin
- Wilson, Olin Chaddock (1909-1994)
- Wilson, Robert Woodrow (b. 1936)
- Wilson, Stephanie D. (b. 1966)
Winckelmann, Maria Margarethe: see Kirch, Maria Margarethe, née Winckelmann (1670-1720)
- Windischmann, Karl Joseph Hieronymus (1775-1839)
- Wing, Vincent (1619-1668)
- Winnecke, Friedrich August Theodor (1835-1897)
- Winthrop, John (1606-1676)
- Winthrop, John (1714-1779)
- Wintner, Aurel Friedrich (1903-1958)
- Witt, John H. de, Jr. (20th c.)
- Wittich, Paul (ca.1546-1586)
- Wolf, Johann Rudolf (1816-1893)
- Wolf, Max[imilian] Franz Joseph Cornelius (1863-1932)
- Wolfer, Alfred (1854-1931)
- Wollaston, William (1766-1828)
- Woodhouse, Robert (1773-1827)
- Woodward, Robert Simpson (1849-1924)
- Woolley, Richard van der Reit (b. 1906)
- Wren, Christopher, Sir (1632-1723)
- Wright, Edward (1561-1615)
- Wright, Horatio George Anthony (1827-1901)
- Wright, Thomas (1711-1786)
- Wronski, Josef Hoëné de (1778-1853)
- Xenocrates of Chalcedon (396 BC - 314 BC)
- Xenophanes of Colophon (ca. 570 BC - ca. 480 BC)
- Ximenes, Didacus (?-1560)
- Yeates, C.S.S. (1872-1961)
- Yerkes, Charles Tyson (1837-1905)
- Young, Charles Augustus (1834-1908)
- Young, Frederick Mortimer (1860-1927)
- Young, John Watts (b. 1930)
- Young, Reynold Kenneth (1886-1977)
- Young, Thomas (1773-1829)
- Yukawa, Hideki (1907-1981)
- Yunus, Abu'l-Hasan ibn (950-1009)
- Zach, Franz Xaver von (1754-1832)
- Zagar, Francesco (1900-1976)
- Zeeman, Pieter (1865-1943)
- Zeipel, Edvard Hugo von (1873-1959)
- Zeiss, Carl (1816-1888)
- Zel'dovich [Zeldovich, Seldowitsch], Yakov Borisovich (1914-1987)
- Zeno of Elea (ca. 490 BC - ca. 425 BC)
- Zhang Heng [Chang Heng] (78-139)
- Zhu Xi [Chu-hsi] (1130-1200)
- Zinner, Ernst (1886-1970)
Ziolkowski: see Tsiolkovsky, Konstantin Eduardovich (1857-1935)
- Zöllner, Johann Karl [Carl] Friedrich (1834-1882)
- Zona, Temistocle (1848-1910)
- Zucchi, Niccolo (1586-1670)
- Zwicky, Fritz (1898-1974)