Creator
- Ocampo, Sergio1
- Ofer, Aharon R.2
- Oh, Seonghwan1
- Oh, Soo-Nam4
- Oh, Yun Taek1
- Ohanian, Lee E.31
- Okuno, Masahiro, 1947-1
- Olea de Souza e Silva, Pedro1
- Olsen, Claire L.1
- Orane-Hutchinson, Angelo1
- Ordonez, Guillermo4
- Ortega, Eva1
- Ortigueira, Salvador1
- Osotimehin, Sophie2
- Ospina, Sandra1
- Ostroy, Joseph M.1
- Ottonello, Pablo1
- Ouimet, Paige P.1
- Owens, Raymond1
- Ozkan, Serdar3