| Last Name Sort descending | First Name | Year | City | Section/Speaker Type | 
|---|---|---|---|---|
| Macfarlane | A. | 1912 | Cambridge | Arithmetic, Algebra, Analysis | 
| MacFarlane | Alexander | 1900 | Paris | Geometry | 
| Machedon | M. | 1998 | Berlin | Part. Diff. Equations | 
| Macintyre | A. | 1978 | Helsinki | Mathematical logic & foundations of mathematics | 
| Mackey | George W. | 1970 | Nice | Analysis | 
| MacLean | M.C. | 1924 | Toronto | Statistics, Actuarial Science, Economics | 
| MacLean | N.B. | 1924 | Toronto | Geometry | 
| MacMahon | P.A. | 1924 | Toronto | Algebra, Theory of Numbers, Analysis | 
| MacPherson | R. D. | 1983 | Warszawa | Plenary | 
| Macrì | Emanuele | 2022 | Virtual | Algebraic and Complex Geometry | 
| Maday | Yvon | 2006 | Madrid | Numerical Analysis and Scientific Computing | 
| Madia | Giorgina | 1928 | Bologna | Engineering and Industrial Applications | 
| Madry | Aleksander | 2018 | Rio de Janeiro | Mathematical Aspects of Computer Science | 
| Madsen | I | 1978 | Helsinki | Topology | 
| Madsen | Ib | 2006 | Madrid | Plenary | 
| Maggi | G. A. | 1928 | Bologna | Mechanics, Astronomy, Geodesy, Mathematical Physics, Theoretical Physics | 
| Magidor | M. | 1986 | Berkeley | Mathematical Logic & Foundations | 
| Mahler | K. | 1936 | Oslo | Algebra and Number Theory | 
| Mahler | K. | 1950 | Cambridge (USA) | Algebra & Theory of Numbers | 
| Mahler | Kurt | 1932 | Zurich | Algebra and Number Theory | 
| Mahowald | Mark | 1998 | Berlin | Topology | 
| Maier | Wilhelm | 1932 | Zurich | Analysis | 
| Maillard | L. | 1920 | Strasbourg | Mechanics, Physical Mathematics, Astronomy | 
| Maillet | Ed. | 1900 | Paris | History and Math Education | 
| Maillet | Jean-Michel | 2006 | Madrid | Mathematical Physics |