There are 10 mathematicians whose last name begin with OOI.
| Ooi, Beng Chin | ||
| Ooi, Chia Ching | Albert-Ludwigs-Universität Freiburg im Breisgau | 2009 |
| Ooi, Hsu Kiang | University of Texas at Dallas | 2014 |
| Ooi, James | Massachusetts Institute of Technology | 1998 |
| Ooi, Kelvin | Nanyang Technological University | 2013 |
| Ooi, Keng Hao | Louisiana State University | 2021 |
| Ooi, Khay | Australian National University | 2004 |
| Ooi, Takumu | Kyoto University | 2024 |
| Ooi, Wei | Cornell University | 2001 |
| Ooi, Yuan Shyong | National Taiwan University | 2020 |