There are 20 mathematicians whose last name begin with GAIN.
| Gain, Josiah | The Johns Hopkins University | 1914 |
| Gain, Pradip | Vidyasagar University | 2015 |
| Gaindric, Constantin | Moldova State University | 1972 |
| Gaindric, Constantin | Central Economics and Mathematics Institute, Russian Academy of Science | 1972 |
| Gainer, Walter | Massachusetts Institute of Technology | 1959 |
| Gainer-Dewar, Andrew | Brandeis University | 2012 |
| Gaines, Brian | University of Cambridge | 1972 |
| Gaines, Brian | North Carolina State University | 2017 |
| Gaines, Daniel | University of Illinois at Urbana-Champaign | 1998 |
| Gaines, David | University of Kentucky | 1996 |
| Gaines, Fergus | California Institute of Technology | 1966 |
| Gaines, James | Washington University in St. Louis | 1961 |
| Gaines, Richard | Princeton University | 1969 |
| Gaines, Robert | University of Colorado at Boulder | 1967 |
| Gaines, Tommi | University of California, Los Angeles | 2008 |
| Gaino, Bruna | Université Catholique de Louvain | 2001 |
| Gainullin, Fyodor | Imperial College London | 2016 |
| Gainutdinov, Azat | ||
| Gainutdinova, Aida | Kazan State University | 2004 |
| Gainza, Pablo | Duke University | 2015 |