There are 13 mathematicians whose last name begin with HALLI.
| Halliday, David | University of Pittsburgh | 1942 |
| Halliday, George | University of Cambridge | 1970 |
| Halliday, Ian | University of Cambridge | 1964 |
| Hallier, Mareen | Freie Universität Berlin | 2015 |
| Hallin, Marc | Université Libre de Bruxelles | 1976 |
| Hallinan, Gregg | National University of Ireland, Galway | 2009 |
| Hallinan, Patricia | University of Wisconsin-Milwaukee | 1994 |
| Hallinan, Peter | Harvard University | 1995 |
| Hallingstad, Oddvar | Norges Teknisk-Naturvitenskapelige Universitet | 1978 |
| Halliwell, Garry | State University of New York at Buffalo | 2013 |
| Halliwell, Gemma | University of Sheffield | 2018 |
| Halliwell, Jonathan | University of Cambridge | 1986 |
| Halliwell, Nicholas | Université Côte d'Azur | 2022 |