Dictionaries, Thesauruses, Pictures, and Press Releases
- Oxley, Tony
- Ozi, Etienne
- Ozim, Igor
- O’Brien, Eugene
- O’Connell, Charles
- O’Conor, John
- O’Day, Anita (originally, Colton, Anita Belle)
- O’Dette, Paul
- O’Hara, Betty
- O’Hara, Geoffrey
- O’Mara, Joseph
- O’Neill, Dennis (James)
- O’Riley, Christopher
- O’Sullivan, Denis
- P.
- P.
- P.K.
- P.R.
- Paap, Wouter
- Pablo (Costales), Luís (Alfonso) de