| Last Name | First Name Sort descending | Year | City | Section/Speaker Type |
|---|---|---|---|---|
| Archibald | R. C. | 1936 | Oslo | Logic, Philosophy, and History |
| Bose | R. C. | 1950 | Cambridge (USA) | Prob & Stats |
| Gunning | R. C. | 1970 | Nice | Analysis |
| Kirby | R. C. | 1970 | Nice | Geometry & Topology |
| Vaughan | R. C. | 1978 | Helsinki | Number Theory |
| Anderson | R. D. | 1970 | Nice | Geometry & Topology |
| Edwards | R. D. | 1978 | Helsinki | Plenary |
| MacPherson | R. D. | 1983 | Warszawa | Plenary |
| Montessus | R. de | 1908 | Rome | Arithmetic, Algebra, Analysis |
| Krichevsky | R. E. | 1986 | Berkeley | Mathematical Aspects of Computer Science |
| Tarjan | R. E. | 1983 | Warszawa | Computer & information sciences/Prize winner |
| Paley | R. E. A. C. | 1932 | Zurich | Analysis |
| Williams | R. F. | 1970 | Nice | Analysis |
| Douglas | R. G. | 1978 | Helsinki | Op Alg & Grp Rep |
| Bing | R. H. | 1950 | Cambridge (USA) | |
| Bing | R. H. | 1962 | Stockholm | Topology & Differential Geometry |
| Soare | R. I. | 1978 | Helsinki | Mathematical logic & foundations of mathematics |
| Aumann | R. J. | 1978 | Helsinki | Math Social & Biological Sciences |
| Baxter | R. J. | 1990 | Kyoto | Mathematical Physics |
| Diperna | R. J. | 1986 | Berkeley | Partial Differential Equations and Dynamic Systems |
| Williams | R. J. | 1998 | Berlin | Prob & Stats |
| Zimmer | R. J. | 1986 | Berkeley | Ordinary Differential Equations and Dynamic Systems |
| Milgram | R. James | 1974 | Vancouver | Algebraic & Differential Topology |
| Getoor | R. K. | 1970 | Nice | Analysis |
| Bryant | R. L. | 1986 | Berkeley | Geometry |