There are 30 mathematicians whose last name begin with HATT.
| Hattab, Ezz | National Technical University of Athens | 2003 |
| Hattab, Georges | Universität Bielefeld | 2018 |
| Hattab, Mohammad | The University of New Mexico | 2013 |
| Hattab Abrougui, Hanène | Université Joseph Fourier Grenoble I | 1998 |
| Hattaf, Khalid | Université Hassan II de Casablanca | 2011 |
| Hattan, Corinne | University of Illinois at Urbana-Champaign | 1945 |
| Hatt-Arnold, Didier | Université de Genève | 1986 |
| Hattaway, Amanda | University of Massachusetts Amherst | 2004 |
| Hattaway, Walter | Auburn University | 1974 |
| Hattemer, Jimmie | Washington University in St. Louis | 1964 |
| Hättenschweiler, Jörg | ETH Zürich | 2015 |
| Hättenschwiler, Pius | ETH Zürich | 1984 |
| Hattensperger, Claudia | Universität der Bundeswehr München | 1997 |
| Hatter, Luke | University of Oxford | 1997 |
| Hättig, Daniel | Eberhard-Karls-Universität Tübingen | 2023 |
| Hattingh, J.M. | Potchefstroomse Universiteit vir Christelike Hoër Onderwys | 1971 |
| Hattingh, Johannes | Rand Afrikaans University | 1989 |
| Hattingh, | University of Cape Town | 2002 |
| Hattis, Philip | Massachusetts Institute of Technology | 1980 |
| Hattler, Johannes | Albert-Ludwigs-Universität Freiburg im Breisgau | 2004 |
| Hatton, Richard | University of Nottingham | 2020 |
| Hatton, Robert | Michigan State University | 1953 |
| Hattori, Akio | University of Tokyo | 1959 |
| Hattori, Harrumi | Rensselaer Polytechnic Institute | 1983 |
| Hattori, Masafumi | Kyoto University | 2024 |
| Hattori, Shin | University of Tokyo | 2005 |
| Hattori, Tetsuya | Osaka University | 1995 |
| Hattori, Toshio | Universidade de São Paulo | 1971 |
| Hattrup, Dieter | Rheinische Friedrich-Wilhelms-Universität Bonn | 1977 |
| Hätty, Anna | Universität Stuttgart | 2020 |