There are 11 mathematicians whose last name begin with GRET.
| Grétarsson, Jón Tómas | Stanford University | 2012 |
| Gretebeck, Randall | University of Wisconsin-Madison | 1986 |
| Gretete, Driss | Université de Provence - Aix-Marseille I | 2005 |
| Grethel, Jr., Robert | University of Southern California | 1973 |
| Grether, David | Stanford University | 1968 |
| Grether, Stefanie | Karlsruher Institut für Technologie (KIT) | 2016 |
| Gretschel, Heinrich | Universität Leipzig | 1873 |
| Gretsky, Neil | Carnegie Mellon University | 1967 |
| Gretton, Arthur | University of Cambridge | 2003 |
| Gretz, Friedrich | Macquarie University | 2015 |
| Gretz, Friedrich | Rheinisch-Westfälische Technische Hochschule Aachen | 2015 |