There are 30 mathematicians whose last name begin with GRAT.
| Gratadour, Damien | ||
| Grataloup, Albin | Université de Montpellier | 2022 |
| Gratama, Koenraad | Universiteit Utrecht | 1866 |
| Gratch, Jonathan | University of Illinois at Urbana-Champaign | 1995 |
| Gratcheva, Ekaterina | The George Washington University | |
| Gräter, Joachim | Technische Universität Carolo-Wilhelmina zu Braunschweig | 1980 |
| Grathwohl, Christine | Karlsruher Institut für Technologie (KIT) | 2019 |
| Grathwohl, Hans Bugge | Aarhus University | 2016 |
| Grathwohl, Manfred | Johann Wolfgang Goethe-Universität Frankfurt am Main | 1974 |
| Grathwohl, Will | University of Toronto | 2021 |
| Gratie, Cristian | Universiteit Utrecht | 2012 |
| Gratie, Liliana | Universitatea Ovidius Constanta | 1997 |
| Gratieri, Diego | Universidade Estadual de Campinas | 2012 |
| Gratke, Norman | University of Wisconsin-Milwaukee | 2000 |
| Gratrix, Sam | 2004 | |
| Grattage, Jonathan | University of Nottingham | 2006 |
| Grattan-Guinness, Ivor | ||
| Gratton, Enrico | Università di Roma La Sapienza | 1969 |
| Gratton, Larry | Oregon State University | 2005 |
| Gratton, Michael | Duke University | 2008 |
| Gratton, Serge | ||
| Gratton, Steven | University of Cambridge | 2000 |
| Gratwick, Richard | University of Warwick | 2011 |
| Gratz, Ewald | Universität Salzburg | 1984 |
| Gratz, Linda | Ludwig-Maximilians-Universität München | 2012 |
| Gratz, Paul | University of Texas at Austin | 2008 |
| Gratz, Sira | Gottfried Wilhelm Leibniz Universität Hannover | 2015 |
| Gratza, Bernhard | ETH Zürich | 1998 |
| Gratzer, Frank | Princeton University | 1970 |
| Grätzer, George | Eötvös Loránd University | 1960 |