Mathematicians born in the 19th century listed by nationality.

American mathematicians born in the 19th century

• Florence Eliza Allen (1876–1960)
• Emil Artin (1898–1962)
• George David Birkhoff (1884–1944)
• Maxime Bôcher (1867–1918)
• Leonard Eugene Dickson (1874–1954), algebra and number theory
• Jesse Douglas (1897–1965), Fields Medalist
• Edward Kasner (1878–1955)
• Solomon Lefschetz (1884–1972)
• Emilie Martin (1869–1936)
• E. H. Moore (1862–1932)
• Marston Morse (1892–1977)
• Emil Leon Post (1897–1954), logic and computability theory
• Mildred Sanderson (1889–1914)
• Oswald Veblen (1880–1960)
• Joseph L. Walsh (1895–1973)
• Oscar Zariski (1899–1986), algebra

Austrian mathematicians born in the 19th century

• Emil Artin (1898–1962)
• Johann Radon (1887–1956)
• Leopold Vietoris (1891–2002)

Belgian mathematicians born in the 19th century

• Eugène Charles Catalan (1814–1894)

British mathematicians born in the 19th century

• George Boole (1815–1864)
• Arthur Cayley (1821–1895)
• Augustus De Morgan (1806–1871)
• Godfrey Harold Hardy (1877–1947)
• Ada Lovelace (1815–1852)
• Percy Alexander MacMahon (1854–1929)
• Dora Metcalf (1892–1982)
• Louis J. Mordell (1888–1972), number theory
• James Joseph Sylvester (1814–1897)
• Geoffrey Ingram Taylor (1886–1975)
• Edward Charles Titchmarsh (1899–1963)
• Joseph Wedderburn (1882–1948)
• E. T. Whittaker (1873–1956)

Βulgarian mathematicians born in the 19th century

• Ljubomir Chakaloff (1886–1963)

Canadian mathematicians born in the 19th century

• Raymond Clare Archibald (1875–1955)

Czech mathematicians born in the 19th century

• Otakar Borůvka (1899–1995)
• Eduard Čech (1893–1960), topology
• Vojtěch Jarník (1897–1970)
• Karel Petr (1868–1950)
• Emil Weyr (1848–1894)

Danish mathematicians born in the 19th century

• Harald Bohr (1887–1951)

Dutch mathematicians born in the 19th century

• L. E. J. Brouwer (1881–1966)
• Gustav de Vries (1866–1934)
• Arend Heyting (1898–1980)
• Diederik Korteweg (1848–1941)
• Thomas Joannes Stieltjes (1856–1894)

Finnish mathematicians born in the 19th century

• Ernst Leonard Lindelöf (1870–1946)
• Rolf Nevanlinna (1895–1980), complex analysis

French mathematicians born in the 19th century

• Émile Borel (1871–1956), measure theory
• Élie Cartan (1869–1951)
• Jean Gaston Darboux (1842–1917)
• Maurice René Fréchet (1878–1973)
• Charles Hermite (1822–1901)
• Gaston Julia (1893–1978)
• Henri Lebesgue (1875–1941)
• Henri Padé (1863–1953)
• Jules Henri Poincaré (1854–1912)
• Évariste Galois (1811–1832), modern algebra

German mathematicians born in the 19th century

• Ludwig Bieberbach (1886–1982)
• Oskar Bolza (1857–1942)
• Georg Cantor (1845–1918)
• Max Dehn (1878–1952)
• Ferdinand Georg Frobenius (1849–1917)
• Carl Gustav Axel Harnack (1851–1888)
• Felix Hausdorff (1868–1942)
• Ernst Hellinger (1883–1943)
• Kurt Hensel (1861–1941)
• David Hilbert (1862−1943)
• Heinz Hopf (1894–1971)
• Adolf Hurwitz (1859–1919)
• Felix Klein (1849–1925)
• Hellmuth Kneser (1898–1973)
• Leopold Kronecker (1823–1891)
• Ernst Kummer (1810–1893)
• Edmund Landau (1877–1938)
• Ferdinand von Lindemann (1852–1939)
• Franz Mertens (1840–1927)
• Hermann Minkowski (1864–1909)
• Emmy Noether (1882–1935)
• Bernhard Riemann (1826–1866)
• Arthur Schoenflies (1853–1928)
• Karl Weierstrass (1815–1897)
• Hermann Weyl (1885–1955)
• Richard Dedekind (1831–1916)
• Friedrich Ludwig Gottlob Frege (1848–1925)

Greek mathematicians born in the 19th century

• Georgios Remoundos (1878–1928)
• Cyparissos Stephanos (1857–1917)

Hungarian mathematicians born in the 19th century

• Lipót Fejér (1880–1959)
• Alfréd Haar (1885–1933)
• George Pólya (1887–1985)

Indian mathematicians born in the 19th century

• Srinivasa Ramanujan (1887–1920)

Irish mathematicians born in the 19th century

• John Casey (1820–1891)
• Roland Bryce Ammons (1887–1985)
• William Rowan Hamilton (1805–1865)

Italian mathematicians born in the 19th century

• Ulisse Dini (1845–1918)
• Guido Fubini (1879–1943)
• Tullio Levi-Civita (1873–1941)
• Giuseppe Peano (1858–1932)
• Leonida Tonelli (1885–1946), calculus of variations

Japanese mathematicians born in the 19th century

• Teiji Takagi (1875–1960)

Norwegian mathematicians born in the 19th century

• Niels Henrik Abel (1802–1829)
• Ole Peder Arvesen (1895–1991)
• Viggo Brun (1885–1978)
• T.O. Engset (1865–1943)
• Axel Sophus Guldberg (1838–1913)
• Alf Victor Guldberg (1866–1936)
• Sophus Lie (1842–1899)
• Øystein Ore (1899–1968)
• Thoralf Skolem (1887–1963)
• Carl Størmer (1874–1957)
• Ludwig Sylow (1832–1918), group theory
• Axel Thue (1863–1922)

Polish mathematicians born in the 19th century

• Stefan Banach (1892–1945), functional analysis
• Bronisław Knaster (1893–1980)
• Kazimierz Kuratowski (1896–1980)
• Stefan Mazurkiewicz (1888–1945)
• Juliusz Schauder (1899–1943)
• Wacław Sierpiński (1882–1969)
• Stanisław Zaremba (1863–1942)

Russian mathematicians born in the 19th century

• Sergei Natanovich Bernstein (1880–1968)
• Pafnuty Chebyshev (1821–1894)
• Sofia Kovalevskaia (1850–1891)
• Aleksandr Lyapunov (1857–1918)

Swedish mathematicians born in the 19th century

• Lars Edvard Phragmén (1863–1937)

Swiss mathematicians born in the 19th century

• Michel Plancherel (1885–1967)