| Last Name Sort ascending | First Name | Year | City | Section/Speaker Type |
|---|---|---|---|---|
| Hermes | Henry | 1974 | Vancouver | Control Theory & Related Optimization Problems |
| Herman | M. R. | 1978 | Helsinki | Ord. diff. equations & dynamical systems |
| Herman | Michael | 1998 | Berlin | Ordinary Differential Equations & Dynamical Systems |
| Henrici | P. | 1962 | Stockholm | Plenary |
| Henniart | Guy | 2006 | Madrid | Lie Groups and Lie Algebras |
| Henkin | G. M. | 1983 | Warszawa | Complex Analysis |
| Henderson | Robert | 1924 | Toronto | Statistics, Actuarial Science, Economics |
| Henderson | Sir James B. | 1924 | Toronto | Engineering |
| Hencky | H. | 1928 | Bologna | Engineering and Industrial Applications |
| Helson | Henry | 1970 | Nice | Analysis |
| Helgason | Sigurdur | 1970 | Nice | Geometry & Topology |
| Helfgott | Harald | 2014 | Seoul | Number Theory, Combinatorics |
| Helein | Frederic | 1998 | Berlin | Part. Diff. Equations |
| Hejhal | D. A. | 1986 | Berkeley | Numerical Methods & Computing |
| Heins | M. | 1958 | Edinburgh | Classical & Functional Analysis |
| Heinonen | Juha | 2002 | Beijing | Real & Complex Analysis |
| Heegaard | P. | 1928 | Bologna | Elementary Mathematics, Didactical Questions, Mathematical Logic |
| Heegaard | Poul | 1936 | Oslo | Logic, Philosophy, and History |
| Hedrlín | Z. | 1970 | Nice | Algebra |
| Hedrick | E.R. | 1924 | Toronto | Engineering |
| Hecke | Erich | 1936 | Oslo | Plenary |
| Heck | N.H. | 1924 | Toronto | Mechanics, Physics, Astronomy, Geophysics |
| Heath-Brown | D. R. | 1983 | Warszawa | Number Theory |
| Heath-Brown | Roger | 2010 | Hyderabad | Number Theory |
| He | Xuhua | 2018 | Rio de Janeiro | Lie Theory and Generalizations |