- Omar Besbes
- Omar Besbes, Yonatan Gur, N. Bora Keskin, Assaf Zeevi
- Omar El Housni
- Omar Mouchtaki
- Omar Romero Hernandez
- Omar Skali Lami
- Omer Beyca
- Omid Nohadani
- Omid Rafieian
- Omkar Thakoor
- Omogbolade Ajayi
- Omya Hustadmarmor
- Onesun Yoo
- Onno Boxma
- Onur Dulgeroglu
- Opeyemi Fadipe
- Oriana Calderon
- Osbert Bastani
- Oscar A. Herrera-Restrepo
- Oscar Aguilar
