There are 11 mathematicians whose last name begin with TREF.
| Trefan, George | University of North Texas | 1994 |
| Trefethen, Lloyd | Stanford University | 1982 |
| Trefethen, Stephen | University of Arizona | 2016 |
| Treffers, Adrie | Universiteit Utrecht | 1978 |
| Treffers, Menno | Universiteit Leiden | 1985 |
| Treffinger, Hipolito | Université de Sherbrooke | 2017 |
| Trefftz, Erich | Universität Straßburg | 1914 |
| Trefftz, Erich | Technische Hochschule Stuttgart | 1929 |
| Trefler, Daniel | University of California, Los Angeles | 1989 |
| Trefler, Richard | University of Texas at Austin | 1999 |
| Trefzger, Joseph | University of Illinois at Urbana-Champaign | 1993 |