| Last Name | First Name Sort ascending | Year | City | Section/Speaker Type |
|---|---|---|---|---|
| Wolfenden | H.H. | 1924 | Toronto | Statistics, Actuarial Science, Economics |
| Zeuthen | H.G. | 1908 | Rome | Philosophy, History, and Didactics |
| Zeuthen | H.G. | 1908 | Rome | Geometry |
| Levinson | H.C. | 1924 | Toronto | Mechanics, Physics, Astronomy, Geophysics |
| Plummer | H.C. | 1924 | Toronto | Engineering |
| Plummer | H.C. | 1924 | Toronto | Mechanics, Physics, Astronomy, Geophysics |
| Dwight | H.B. | 1924 | Toronto | Engineering |
| Beckh-Widmanstetter | H.A. Von | 1912 | Cambridge | Arithmetic, Algebra, Analysis |
| Lorentz | H.A. | 1908 | Rome | Plenary |
| Alt | H. W. | 1986 | Berkeley | Partial Differential Equations and Dynamic Systems |
| Knobloch | H. W. | 1983 | Warszawa | Control Theory & Optimization |
| Lenstra | H. W. | 1986 | Berkeley | Plenary |
| Turnbull | H. W. | 1928 | Bologna | Analysis |
| Koch | H. Von | 1912 | Cambridge | Arithmetic, Algebra, Analysis |
| Koch | H. V. | 1986 | Berkeley | Number Theory |
| Ruse | H. S. | 1936 | Oslo | Mathematical Physics, Astronomy and Geophysics |
| McKean | H. P. | 1978 | Helsinki | Part. Diff. Equations |
| Mulholland | H. P. | 1936 | Oslo | Analysis |
| Coxeter | H. M. | 1954 | Amsterdam | Geometry & Topology |
| Stark | H. M. | 1970 | Nice | Algebra |
| Chatelier | H. le | 1912 | Cambridge | Didactics |
| Royden | H. L. | 1974 | Vancouver | Complex Analysis |
| Vanderlinden | H. L. | 1928 | Bologna | Mechanics, Astronomy, Geodesy, Mathematical Physics, Theoretical Physics |
| Keisler | H. Jerome | 1970 | Nice | Plenary |
| Bos | H. J. M. | 1986 | Berkeley | History of Mathematics |