- The Others
- Otherworld
- Otogi Zoshi
- Otomen
- Otome Yokai Zakuro
- Oud België
- Oud Geld
- Our America with Lisa Ling
- Ouran High School Host Club
- Ouran High School Host Club (2011)
- Our Mutual Friend
- Outcasts
- The Outer Limits
- The Outer Limits (1995)
- Outer Space Astronauts
- Outlaw
- Outlaw Star
- Outnumbered
- Out of Practice
- Out of the Wild
