O
- O'Connell, David
- Oba, Takahiro
- Obata, Fumio
- Obata, Takeshi
- Ochoa, Juan
- Odland, Tim
- Odyr
- Ofili, Chris
- Ogata, Tomio
- Ogilvie, Sarah
- Oknelid, Ylva
- Okujima, Hiromasa
- Olberg, Kevin
- Oldefors, Agnes
- Oniku
- Onodera, Kouji
- Ormston, Dean
- Ortiz, Lydia
- Osterling, Justin
- Ottley, Ryan