| Last Name Sort descending | First Name | Year | City | Section/Speaker Type | 
|---|---|---|---|---|
| Colding | Tobias Holck | 2022 | Virtual | Plenary Lecture | 
| Colella | Phillip | 1994 | Zurich | Applications of Mathematics in the Sciences | 
| Colin De Verdière | Y. | 1986 | Berkeley | Geometry | 
| Collatz | L. | 1954 | Amsterdam | Mathematical Physics & Applied Mathematics | 
| Collet | P. | 1998 | Berlin | Mathematical Physics | 
| Collins | Benoit | 2022 | Virtual | Analysis, Probability | 
| Collinwood | E.F. | 1950 | Cambridge (USA) | |
| Colliot-Thélène | J. L. | 1986 | Berkeley | Algebraic Geometry | 
| Colmez | Pierre | 1998 | Berlin | Number Theory | 
| Colombo | B. | 1928 | Bologna | Analysis | 
| Combes | J.-M. | 1974 | Vancouver | Mathematical Physics & Mechanics | 
| Comessatti | A. | 1932 | Zurich | Geometry | 
| Commessatti | A. | 1928 | Bologna | Geometry | 
| Conley | Charles C. | 1970 | Nice | Analysis | 
| Conlon | David | 2014 | Seoul | Combinatorics | 
| Connelly | R. | 1978 | Helsinki | Geometry | 
| Connes | A. | 1974 | Vancouver | Operator Algebras, Harmonic Analysis & Representation of Groups | 
| Connes | A. | 1978 | Helsinki | Plenary | 
| Connes | A. | 1986 | Berkeley | Real and Functional Analysis | 
| Constantin | Peter | 1994 | Zurich | Part. Diff. Equations | 
| Conti | A. | 1908 | Rome | Philosophy, History, and Didactics | 
| Contreras | Gonzalo | 2010 | Hyderabad | Dynamical Systems and Ordinary Differential Equations | 
| Conway | A. W. | 1936 | Oslo | Mathematical Physics, Astronomy and Geophysics | 
| Conway | A.W. | 1924 | Toronto | History, Philosophy, Didactics | 
| Conway | A.W. | 1924 | Toronto | Mechanics, Physics, Astronomy, Geophysics |