| Last Name Sort descending | First Name | Year | City | Section/Speaker Type |
|---|---|---|---|---|
| Pfeiffer | G. | 1932 | Zurich | Analysis |
| Pfeiffer | G.F. | 1908 | Rome | Geometry |
| Pfister | A. | 1970 | Nice | Algebra |
| Phakeng | Mamokgethi | 2018 | Rio de Janeiro | Invited (lecture was not given) |
| Pham | Frederic | 1970 | Nice | Analysis |
| Phillips | Ralph | 1970 | Nice | Analysis |
| Phong | Duong H. | 1994 | Zurich | Real & Complex Analysis |
| Phragmén | L.E. | 1924 | Toronto | Statistics, Actuarial Science, Economics |
| Piatetski-Shapiro | Ilya I. | 1966 | Moskva | Plenary |
| Piatetski-Shapiro | Ilya I. | 1978 | Helsinki | Lie Groups |
| Piatetski-Shapiro | Ilya I. | 2002 | Beijing | Number Theory |
| Picard | Dominique | 2006 | Madrid | Probability and Statistics |
| Picard | É. | 1897 | Zurich | Analysis and Function Theory |
| Picard | E. | 1908 | Rome | Plenary |
| Piccard | S. | 1932 | Zurich | Analysis |
| Piccard | Sophie | 1936 | Oslo | Algebra and Number Theory |
| Pick | G. | 1908 | Rome | Arithmetic, Algebra, Analysis |
| Picone | M. | 1928 | Bologna | Mechanics, Astronomy, Geodesy, Mathematical Physics, Theoretical Physics |
| Picone | Mauro | 1932 | Zurich | Analysis |
| Piene | K. | 1954 | Amsterdam | Philosophy, History & Education |
| Pierce | Lillian B. | 2022 | Virtual | Number Theory, Analysis |
| Pierpont | J. | 1924 | Toronto | Plenary |
| Pila | Jonathan | 2014 | Seoul | Plenary |
| Pillay | Anand | 1994 | Zurich | Logic |
| Pilloni | Vincent | 2018 | Rio de Janeiro | Number Theory |