Culture magazines
- Operation Petticoat
- Operation Sandman: Warriors in Hell
- Operation Thunderbolt
- Operation Warzone
- Operation: Delta Force
- Ophuls, William
- Opie, Anne
- Opie, Iona
- Oppel, Kenneth
- Oppelt, Norman T.
- Oppenheim, Felix E.
- Oppenheim, Lois Hecht
- Oppenheim, Micha Falk
- Oppenheim, Michael
- Oppenheimer, Andres
- Oppenheimer, Gregg
- Oppersdorff, Tony
- Opportunity Knocks
- Opposing Force
- Opposite Corners