Editing List of geometers (section)

== 1801–1900 AD ==
{| class=wikitable align=right
|- align=center
|[[File:Julius Plücker.jpg|80px]]<br>[[Julius Plücker]]
|[[File:Arthur Cayley.jpg|80px]]<br>[[Arthur Cayley]]
|[[File:Georg Friedrich Bernhard Riemann.jpeg|80px]]<br>[[Bernhard Riemann]]
|- align=center
|[[File:Dedekind.jpeg|80px]]<br>[[Richard Dedekind]]
|[[File:Noether 2514.JPG|80px]]<br>[[Max Noether]]
|[[File:Felix Klein.jpeg|80px]]<br>[[Felix Klein]]
|- align=center
|[[File:De Raum zeit Minkowski Bild (cropped).jpg|80px]]<BR>[[Hermann Minkowski]]
|[[File:Henri Poincaré-2.jpg|80px]]<br>[[Henri Poincaré]]
|[[File:Jewgraf Stepanowitsch Fjodorow.jpg|80px]]<BR>[[Evgraf Fedorov]]
|}
* [[Karl Wilhelm Feuerbach]] (1800–1834) – [[Euclidean geometry]]
* [[Julius Plücker]] (1801–1868)
* [[János Bolyai]] (1802–1860) – [[hyperbolic geometry]], a [[non-Euclidean geometry]]
* [[Christian Heinrich von Nagel]] (1803–1882) – [[Euclidean geometry]]
* [[Johann Benedict Listing]] (1808–1882) – [[topology]]
* [[Hermann Günther Grassmann]] (1809–1877) – [[exterior algebra]]
* [[Ludwig Otto Hesse]] (1811–1874) – [[algebraic invariant]]s and [[geometry]]
* [[Ludwig Schlafli]] (1814–1895) – [[Regular 4-polytope]]
* [[Pierre Ossian Bonnet]] (1819–1892) – [[differential geometry]]
* [[Arthur Cayley]] (1821–1895)
* [[Joseph Bertrand]] (1822–1900) 
* [[Delfino Codazzi]] (1824–1873) – [[differential geometry]]
* [[Bernhard Riemann]] (1826–1866) – [[elliptic geometry]] (a [[non-Euclidean geometry]]) and  [[Riemannian geometry]]
* [[Julius Wilhelm Richard Dedekind]] (1831–1916)
* [[Ludwig Burmester]] (1840–1927) – theory of [[Linkage (mechanical)|linkages]]
* [[Edmund Hess]] (1843–1903)
* [[Albert Victor Bäcklund]] (1845–1922)
* [[Max Noether]] (1844–1921) – [[algebraic geometry]]
* [[Henri Brocard]] (1845–1922) – [[Brocard points]]
* [[William Kingdon Clifford]] (1845–1879) – [[geometric algebra]]
* [[Pieter Hendrik Schoute]] (1846–1923)
* [[Felix Klein]] (1849–1925)
* [[Sofia Kovalevskaya|Sofia Vasilyevna Kovalevskaya]] (1850–1891)
* [[Evgraf Fedorov]] (1853–1919)
* [[Henri Poincaré]] (1854–1912)
* [[Luigi Bianchi]] (1856–1928) – [[differential geometry]]
* [[Alicia Boole Stott]] (1860–1940) 
* [[Hermann Minkowski]] (1864–1909) – [[non-Euclidean geometry]]
* [[Henry Frederick Baker]] (1866–1956) – [[algebraic geometry]]
* [[Élie Cartan]] (1869–1951)
* [[Dmitri Egorov]] (1869–1931) – [[differential geometry]]
* [[Veniamin Kagan]] (1869–1953)
* [[Raoul Bricard]] (1870–1944) – [[descriptive geometry]]
* [[Ernst Steinitz]] (1871–1928) – [[Steinitz's theorem]]
* [[Marcel Grossmann]] (1878–1936)
* [[Oswald Veblen]] (1880–1960) – [[projective geometry]], [[differential geometry]]
* [[Nathan Altshiller Court]] (1881–1968) – author of ''College Geometry''
* [[Emmy Noether]] (1882–1935) – [[algebraic topology]] 
* [[Harry Clinton Gossard]] (1884–1954) 
* [[Arthur Rosenthal]] (1887–1959)
* [[Helmut Hasse]] (1898–1979) – [[algebraic geometry]]