Personen mit »O«
- O'Shea Jackson Jr.
- Octavia Spencer
- Oded Fehr
- Odette Annable
- Odeya Rush
- Olaf Scholz
- Ole Einar Bjørndalen
- Ole Gunnar Solskjær
- Ole Kirk Christiansen
- Oleg Basilashvili
- Oleg Kononenko
- Oleg Menshikov
- Oleg Yankovsky
- Oleksandr Usyk
- Olga Kurylenko
- Oliver Jackson-Cohen
- Oliver Platt
- Oliver Reed
- Olivia Colman
- Olivia Cooke
- Olivia Munn
- Olivia Rodrigo
- Olivia Wilde
- Olivia de Havilland
- Olivier Martinez
- Olympe de Gouges
- Omar Benson Miller
- Omar Epps
- Omar Gooding
- Omar Khayyam
- Omar Sharif
- Omar Sy
- Omid Djalili
- Oona Chaplin
- Ophelia
- Ophelia Lovibond
- Oprah Winfrey
- Order of the Badge of Honour
- Orlando Bloom
- Orlando Jones
- Ornella Muti
- Ornella Vanoni
- Orson Welles
- Osamu Tezuka
- Oscar De La Hoya
- Oscar Isaac
- Oscar Wilde
- Oskar Schlemmer
- Oskar Werner
- Ossie Davis
- Ottavia Piccolo
- Ottmar Hitzfeld
- Otto Hahn
- Otto Jespersen
- Otto Lilienthal
- Otto Preminger
- Otto Sander
- Owain Glyndŵr
- Owain Yeoman
- Owen Teague
- Owen Wilson
- Oxana Fedorova
- Ozzy Osbourne