Cast and crew by first letter of first name:
- Ögmundur Sigfússon
- Öistein Boassen
- Ölli Þeramín
- Ölvir Gíslason
- Önundur Pálsson
- Örlygur Eyþórsson
- Örlygur Kristfinnsson
- Örn Alexander Ámundason
- Örn Almarsson
- Örn Arnarson
- Örn Árnason
- Örn Bjarnason
- Örn Eldjárn
- Örn Enok Brynjólfsson
- Örn Gauti Jóhannsson
- Örn Harðarsson
- Örn Ingólfsson
- Örn Lárusson
- Örn Marinó Arnarson
- Örn Ragnarsson
- Örn Sigurbergsson
- Örn Smári Gíslason
- Örn Sveinsson
- Örn Sveinsson
- Örnólfur Árnason
- Örvar Halldórsson
- Örvar Jens Arnarsson
- Örvar Smárason