| Osabel, Dave Montellano |
| Osman, Buntar |
| Ossor, Abdellatif |
| Osti, Krishna Prasad |
| Othman, Abdul Aziz |
| Othman, Muhammad Akhir Bin |
| Otiti, Jerome |
| Otman, Abdulrahman |
| OU Chouly |
| Ou, Lien-wei |
| Ou, Wen-chieh |
| Oudomsack Philavong |
| Ouk Chansopheap |
| Ouk Kunka |
| Ouk Sokha |
| Oukham Phounpakone |
| Oul Nak |
| Oulawan Kulchartchai |
| Oulaytham Lasasimma |
| Ouly Thorng |