- O'Donnell Fionnuala
- O'Donnell Gabriel
- O'Malley Claire
- O'Neill D. Kevin
- O'Rourke Marvyn
- O'Shea Tim
- Oades Caroline
- Oarcea Alexandru
- Obeid Charbel
- Obeid Charbel
- Obrenović Željko
- Occello Michel
- Ochoa Xavier
- Ochs Magalie
- Ochs Magalie
- Oducado Ryan Michael
- Oesch Flavie
- Ogata H
- Ogata Hiroaki
- Ogbule Simeon Ogechukwu
- Oget David
- Ognjanović Ivana
- Ohannessian Mesrob I.
- Ohlsson Stellan
- Ojo Adebayo G.
- Okamoto Toshio
- Oker Ali
- Okoh Agbo-Egwu Abel
- Olavo de Moura Filho César
- Oleksandr Pushkar
- Olga C. Santos
- Olivares Ruby
- Oliveira Carlos Manta
- Oliveira Gil
- Oliveira Manuel
- Oliver Martin
- Oliver-Quelennec Katia
- Olivera Walter
- Olivero Federica
- Ollagnier-Beldame Magali
- Ollivier Christian
- Ologeanu-Taddei Roxana
- Olry Alexis
- Olsen Espen
- Omer Danielle
- Ono-Dit-Biot Jean-Roland
- Oortwijn Michiel
- Oppliger E
- Oppliger P.E.
- Orciuoli Francesco
- Orduña Pablo
- Oriola Bernard
- Orivel François
- Orliac Charlotte
- Orliac Charlotte
- Orliac Charlotte
- Oronoz Maite
- Ortega Manuel
- Ortega Michael
- Ortega Michael
- Ortiz Esparza Miguel Angel
- Osborne Jonathon
- Osenova Petya
- Oster Gérald
- Osterweil Scot
- Otair Mohammed
- Othman Sophie
- Ott Michela
- Ouahbi Ibrahim
- Ouahbi Ibrahim
- Ouali Mohand Akli
- Ouali Mohand Akli
- Ouari Salim
- Oubahssi Lahcen
- Oubenaïssa Laïla
- Ouchenne Boulares
- Oudeyer Pierre-Yves
- Oudeyer Pierre-Yves
- Ouelhezi Aicha Ltaief & Zohra
- Ouellet Hubert
- Oueslati Maysa
- Ould Mohamed Abdallahi
- Oulhaci Ali Mhammed
- Oulhaci Mhammed Ali
- Oulhaci M’hammed Ali
- Oulmaati Karim
- Oulmaati Karim
- Oumaira Ilham
- Oumtanaga Souleymane
- Ouraiba El Amine Ouraiba
- Ouraiba El Amine
- Ouraiba El Amine
- Ouraiba El Amine
- Ouzrout Yacine
- Ouédraogo Frédéric T
- Ouédraogo Frédéric
- Owczarek Floriane
- Owen Martin
- Ožvoldová Miroslava
- O’sullivan Dympna
- O’sullivan Dympna