There are 7 mathematicians whose last name begin with ONN.
| Onn, Shmuel | Cornell University | 1992 |
| Onn, Uri | Technion-Israel Institute of Technology | 2003 |
| Onnen, Hendrik | Universiteit Utrecht | 1867 |
| Onnen, Hendrik | Universiteit Utrecht | 1896 |
| Onneweer, Cornelis | Wayne State University | 1969 |
| Onninen, Jani | Jyväskylän yliopisto | 2002 |
| Onnis, Irene | Universidade Estadual de Campinas | 2005 |