There are 5 mathematicians whose last name begin with OSTL.
| Ostland, Michael | University of California, Berkeley | 1999 |
| Ostle, Bernard | Iowa State University | 1949 |
| Ostlie, Randolph | University of Notre Dame | 1971 |
| Ostling, Edward | Lehigh University | 1971 |
| Östlund, Olof-Petter | Uppsala Universitet | 2001 |