There are 5 mathematicians whose last name begin with HALLO.
| Hallock, Kevin | Princeton University | 1995 |
| Hallock, William | Bayerische Julius-Maximilians-Universität Würzburg | 1881 |
| Halloran, M. Elizabeth | Harvard University | 1989 |
| Hallouf, Yassin | Taras Shevchenko National University of Kyiv | 1990 |
| Hallouin, Emmanuel |