There are 5 mathematicians whose last name begin with OBS.
| Obscura Acosta, Nidia | Aalto-yliopisto | 2024 |
| Obshta, Anatoly | 1981 | |
| Obst, Norman | Purdue University | 1970 |
| Obstfeld, Maurice | Massachusetts Institute of Technology | 1979 |
| Obsu, Legesse | Addis Ababa University | 2015 |