List of geometers
A geometer is a mathematician whose area of study is geometry.
Some notable geometers and their main fields of work, chronologically listed, are:1000 BC to 1 BC
- Baudhayana - Euclidean geometry, geometric algebra
- Manava - Euclidean geometry
- Thales of Miletus - Euclidean geometry
- Pythagoras - Euclidean geometry, Pythagorean theorem
- Zeno of Elea - Euclidean geometry
- Hippocrates of Chios - first systematically organized Stoicheia - Elements
- Mozi
- Plato
- Theaetetus
- Autolycus of Pitane - astronomy, spherical geometry
- Euclid - Elements, Euclidean geometry
- Apollonius of Perga - Euclidean geometry, conic sections
- Archimedes - Euclidean geometry
- Eratosthenes - Euclidean geometry
- Katyayana - Euclidean geometry
1–1300 AD
- Hero of Alexandria - Euclidean geometry
- Pappus of Alexandria - Euclidean geometry, projective geometry
- Hypatia of Alexandria - Euclidean geometry
- Brahmagupta - Euclidean geometry, cyclic quadrilaterals
- Vergilius of Salzburg - Irish bishop of Aghaboe, Ossory and later Salzburg, Austria; antipodes, and astronomy
- Al-Abbās ibn Said al-Jawharī
- Thabit ibn Qurra - analytic geometry, non-Euclidean geometry, conic sections
- Abu'l-Wáfa - spherical geometry, non-Euclidean geometry
- Alhazen
- Omar Khayyam - algebraic geometry, conic sections
- Ibn Maḍāʾ
1301–1800 AD
- Piero della Francesca
- Leonardo da Vinci - Euclidean geometry
- Jyesthadeva - Euclidean geometry, cyclic quadrilaterals
- Marin Getaldić
- Johannes Kepler -
- Edmund Gunter
- Girard Desargues - projective geometry; Desargues' theorem
- René Descartes - invented the methodology of analytic geometry, also called Cartesian geometry after him
- Pierre de Fermat - Analytic Geometry
- Blaise Pascal - projective geometry
- Giordano Vitale
- Philippe de La Hire - projective geometry
- Isaac Newton - 3rd-degree algebraic curve
- Giovanni Ceva - Euclidean geometry
- Johann Jacob Heber - surveyor and geometrician
- Giovanni Gerolamo Saccheri - non-Euclidean geometry
- Leonhard Euler
- Tobias Mayer
- Johann Heinrich Lambert - non-Euclidean geometry
- Gaspard Monge - descriptive geometry
- John Playfair - Euclidean geometry
- Lazare Nicolas Marguerite Carnot - projective geometry
- Joseph Diaz Gergonne - projective geometry; Gergonne point
- Carl Friedrich Gauss - Theorema Egregium
- Louis Poinsot
- Siméon Denis Poisson
- Jean-Victor Poncelet - projective geometry
- Augustin-Louis Cauchy
- August Ferdinand Möbius - Euclidean geometry
- Nikolai Ivanovich Lobachevsky - hyperbolic geometry, a non-Euclidean geometry
- Germinal Dandelin - Dandelin spheres in conic sections
- Jakob Steiner - champion of synthetic geometry methodology, projective geometry, Euclidean geometry
1801–1900 AD
- Karl Wilhelm Feuerbach - Euclidean geometry
- Julius Plücker
- János Bolyai - hyperbolic geometry, a non-Euclidean geometry
- Christian Heinrich von Nagel - Euclidean geometry
- Johann Benedict Listing - topology
- Hermann Günther Grassmann - Exterior Algebra
- Ludwig Otto Hesse - algebraic invariants and geometry
- Ludwig Schlafli - Regular 4-polytope
- Pierre Ossian Bonnet - differential geometry
- Arthur Cayley
- Joseph Bertrand
- Delfino Codazzi - differential geometry
- Bernhard Riemann - elliptic geometry and Riemannian geometry
- Julius Wilhelm Richard Dedekind
- Ludwig Burmester - theory of linkages
- Edmund Hess
- Albert Victor Bäcklund
- Max Noether - algebraic geometry
- Henri Brocard - Brocard points
- William Kingdon Clifford - geometric algebra
- Pieter Hendrik Schoute
- Felix Klein
- Sofia Vasilyevna Kovalevskaya
- Evgraf Fedorov
- Henri Poincaré
- Luigi Bianchi - differential geometry
- Alicia Boole Stott
- Hermann Minkowski - non-Euclidean geometry
- Henry Frederick Baker - algebraic geometry
- Élie Cartan
- Dmitri Egorov - differential geometry
- Veniamin Kagan
- Raoul Bricard - descriptive geometry
- Ernst Steinitz - Steinitz's theorem
- Marcel Grossmann
- Albert Einstein - non-Euclidean geometry
- Oswald Veblen - projective geometry, differential geometry
- Emmy Noether - algebraic topology
- Harry Clinton Gossard
- Arthur Rosenthal
- Buckminster Fuller
- Helmut Hasse - algebraic geometry
- Maurits Cornelis Escher - artist who used geometrical ideas extensively
1901–present
- William Vallance Douglas Hodge
- Patrick du Val
- Beniamino Segre - combinatorial geometry
- Samuel L. Greitzer - founding chairman of USA Mathematical Olympiad
- J. C. P. Miller
- André Weil - Algebraic geometry
- H. S. M. Coxeter - theory of polytopes, non-Euclidean geometry, projective geometry
- J. A. Todd
- Daniel Pedoe
- Shiing-Shen Chern - differential geometry
- Ernst Witt
- Rafael Artzy
- Aleksandr Danilovich Aleksandrov
- László Fejes Tóth
- Edwin Evariste Moise
- Aleksei Pogorelov - differential geometry
- Magnus Wenninger - polyhedron models
- Jean-Louis Koszul
- Isaak Yaglom
- Benoit Mandelbrot - fractal geometry
- Katsumi Nomizu - affine differential geometry
- Michael S. Longuet-Higgins
- John Leech
- Alexander Grothendieck - algebraic geometry
- Branko Grünbaum - discrete geometry
- Michael Atiyah
- Lev Semenovich Pontryagin
- Geoffrey Colin Shephard
- Norman W. Johnson
- John Milnor
- Roger Penrose
- Yuri Manin - algebraic geometry and diophantine geometry
- Vladimir Arnold - algebraic geometry
- Ernest Vinberg
- J. H. Conway - sphere packing, recreational geometry
- Robin Hartshorne - geometry, algebraic geometry
- Phillip Griffiths - algebraic geometry, differential geometry
- Enrico Bombieri - algebraic geometry
- Robert Williams
- Peter McMullen
- Richard S. Hamilton - differential geometry, Ricci flow, Poincaré conjecture
- Mikhail Gromov
- Roger Burrows - applied close packing theory in education
- Rudy Rucker
- William Thurston
- Shing-Tung Yau
- Michael Freedman
- Egon Schulte - polytopes
- George W. Hart - sculptor
- Károly Bezdek - discrete geometry, sphere packing, Euclidean geometry, non-Euclidean geometry
- Simon Donaldson
- Grigori Perelman - Poincaré conjecture
- Maryam Mirzakhani
- Bjorn Poonen
Geometers in art
