There are 15 mathematicians whose last name begin with HALLA.
| Halla, Martin | Technische Universität Wien | 2019 |
| Hallagan, Jean | Syracuse University | 2003 |
| Hallahan, Charles | Rutgers University, New Brunswick | 1968 |
| Hallahan, William T. | Yale University | 2022 |
| Hallai, Julian | University of Texas at Austin | 2011 |
| Hallak, Juan Carlos | Harvard University | 2002 |
| Hallak, Nadav | Technion-Israel Institute of Technology | 2018 |
| Hallam, J. Arne | University of California, Berkeley | 1983 |
| Hallam, John | The University of Edinburgh | 1984 |
| Hallam, Joshua | Michigan State University | 2015 |
| Hallam, Michael | University of Oxford | 2022 |
| Hallam, Thomas | University of Missouri - Columbia | 1965 |
| Hallas, James | Western Michigan University | 2020 |
| Hallauer, Arnel | Iowa State University | 1960 |
| Hallauer, David | University of California, Riverside | 1981 |