There are 15 mathematicians whose last name begin with OHA.
| Ohana, Ruben | Sorbonne Université | 2022 |
| Ohanian, Lee | University of Rochester | 1993 |
| Ohannessian, Mesrob | Massachusetts Institute of Technology | 2012 |
| Ohanyan, Varujan | Yerevan State University | 1993 |
| Ohanyan, Victor | 1998 | |
| Ohanyan, Victor | Steklov Institute of Mathematics | 1979 |
| Ohara, Moriyoshi | Stanford University | 1996 |
| Oharu, Shinnosuke | ||
| Ohashi, Alberto | Universidade de São Paulo | 2006 |
| Ohashi, Hisanori | Kyoto University | 2009 |
| Ohashi, Ryo | Saint Louis University | 2005 |
| Ohashi, Ryo | University of Tokyo | 2007 |
| Ohashi, Ryo | Yokohama National University | 2023 |
| Ohayon, Roger | ||
| Ohazulike, Anthony | Universiteit Twente | 2014 |