- Okeoma Ibe
- Okeoma Ndidi Ibe
- Okiya Omtatah Okoiti
- Okodili Ndidi
- Okoth Osewe
- Okumephuna Chukwunwike
- Okwa Morphy Enebeli
- Ola Shahba
- Oladele Oluwasogo
- Olaide Gbadamosi
- Olajide Olagunju
- Oliver Bakewel, Jerry Adams and Brian Pratt
- Oliver Burkeman
- Oliver Kearns
- Oliver Meth
- Oliver Meth and Dan Moshenberg
- Oliver Meth and Gerard Boyce
- Oliver Sagna
- Oliver Stuenkel
- Olivia Klimm
- Olivia Klimm & Shahadat Hossain
- Olivia Kokushubila Lwabukuna
- Olivia Lwabukuna
- Olivier Blamangin
- Olivier De Schutter
- Olivier Petitjean
- Olivier Petitjean and Elimane Diouf
- Olivier Quarante
- Olivier Sagna
- Olivier Sagna.