- O'Brien David
- O'Brien Sheila
- O'Mahony Mary T
- O'Neill Terence
- O'Reilly Dermot
- Oberling J.
- Oberling J
- Ochir Chimedsuren
- Ochsner E.
- Ochsner E
- Ocquidant Philippe
- Oda Eiji
- Odak Ljubica
- Oddo Mauro
- Oehlers Glenn
- Oelker E.
- Oelker E
- Offit Kenneth
- Offner Fritz
- Ogin G.
- Ogin G
- Ogunbiyi Olufemi
- Ogutu Bernhards
- Oh F.
- Oh J.
- Oh J
- Oh Junhie
- Oh Kyungwon
- Oh S.
- Oh S
- Ohara Kumiko
- Ohba Takashi
- Ohme F
- Oillic Tissier Cécile
- Oillic-Tissier Cécile
- Okandze Antoine
- Oki Izumi
- Oksenhendler Éric
- Olafsson Örn
- Olagunju Andrew
- Oleaga A.
- Oleko A.
- Oleko Amivi
- Olinto Maria Teresa A
- Oliva Maria E.
- Olive C.
- Olive Claude
- Oliveira Isabel
- Oliver M.
- Oliver M
- Olivier Sophie
- Olivier-Gougenheim L.
- Olié Valérie
- Olliaro Piero
- Olsen Jørn
- Olsen Sjurdur
- Olszewski-Ortar A.
- Olszewski-Ortar Agnès
- Omar Mohd Azahadi
- Ombredane M.-P.
- Omorou Abdou Yacoubou
- Onat Altan
- Onel Kenan
- Ong N.
- Ong N
- Ong Sok King
- Oni Samuel
- Onil Samuel
- Oniščuka Marija
- Ono Chie
- Ono Lariane
- Oppermann P.
- Oppermann P
- Oppert Jean-Michel
- Oppert Jean-Michel
- Oppert Jean‐michel
- Oram J.
- Oram Richard
- Orbach Daniel
- Ordunez Pedro
- Orelle Arnaud
- Orlov Andrey
- Orlowski Ewa
- Ormsby Jean-Nicolas
- Ornelas Rui
- Orsat Manuel
- Orsi Laurent
- Orsi Laurent
- Ortelli Laura
- Osiurak François
- Oskam S.
- Osmond Clive
- Osorio Lyda
- Ostojic Sergej
- Ostovar Afshin
- Otero Johanna
- Otorepec Peter
- Ottaway D
- Ottaway J.
- Otto Andreas
- Ouar-Epelboin S.
- Oudaya L
- Oudaya Lila
- Oughton Deborah
- Oulhote Youssef
- Oulhote Youssef
- Oulhote Youssef
- Oury Benoît
- Outin Hervé
- Ouédraogo Jean-Bosco
- Overmier H.
- Overmier H
- Overvad Kim
- Owczarek Slawomir
- Owen B.
- Owen B
- Owen Rhonda
- Owolabi Mayowa Ojo
- Owusu-Dabo Ellis
- Ozbay Bulent
- Ozenfant Damien
- Ozkan Mehpare
- O’reilly B.
- O’reilly B
- O’shaughnessy R.
- O’shaughnessy R