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- Barack Obama, 44th President of the United States, born in Honolulu Aug. 4, 1961
- Kimo von Oelhoffen, football player
- Bobo Olson, World champion boxer, hall of famer
- Eileen Olszewski, Professional female boxer
- Timothy Olyphant, actor
- Danny Ongais, racecar driver
- Ellison Onizuka, astronaut
- Julie Ow, actress
- Chad Owens, professional football player
Read more about this topic: List Of People From Hawaii