Arnt Odnes till Ben Roy Oftedal
- Arnt Odnes - Odd Harald Odnes
- Ola Odnes - Michal Odnik
- Dimitri Odnolko - Sigurd Odnæs
- Sigurd Odnæs - Michael Odoherty
- Margaret Odoi - Roman Odorski
- Stepan Odosii - Petra Marianne Odqvist
- Evija Odre - Malgorzata Anna Odrowaz-P
- Marcin Odrowaz-Petrykowski - Evelina Odsvall
- Arne Odsæter - Sunday Chukwuemeka Odu
- Onyekachi Michael Martin Odum - Antony Oduwo
- Hanne Odven - Slobodan Odzaklic
- Krzysztof Pawel Odziom - Patrick Oechslin
- Bobby Oedegaard - Rolf Steffen Oeding
- Steffen Oeding - Maike Oehme
- Michael Oehme - Aase Johanne Oellingrath
- Inger M. Oellingrath - Carmen Erika Oelze
- Rolf Hans Oelze - Ann Kristin Kilen Oen
- Ann-Kristin Oen - Aud Margrethe Oen
- Bergliot Natalie Oen - Dale Oen
- Daniel Gjesdal Oen - Erling Oen
- Frank Roger Oen - Hallvard Oen
- Hege Svortevik Oen - Ingolf Oen
- Ingolf Oen - John Oen
- John Birger Oen - Kjell Oen
- Kjell Oen - Linda Oen
- Linda Beate Oen - Marith Oen
- Mary-Anne Oen - Petra Karin Oen
- Ragnvald Oen - Ruth Lovise Oen
- Sandra Oen - Stian Kato Oen
- Stian Svendsen Oen - Tor Oen
- Tor Oen - Yngvill Oen
- Åge Magne Oen - Andreas Oerleke
- Robertus Petrus Oerlemans - Nico Oestermann
- Agnete Oestreich - Ruben Oestreich
- Stian Garmann Oestreich - Geir Ove Oettel
- Geir Ove Oettel - Jon Björn Ofeigsson
- Franca Ofenhen - Anne Berit Offenberg
- Arne Offenberg - Jarl Heine Offenberg
- John Offenberg - Solveig Irene Offenberg
- Stein H Offenberg - Sara Aurora Charlotte Offerbeek
- Elisabeth Offerdahl - Willy André Offerdahl
- Aleksander Offerdal - Berit Offerdal
- Berith M Offerdal - Erik Offerdal
- Erling Offerdal - Hans Egil Offerdal
- Harald Norvald Offerdal - Jorunn Marie Offerdal
- Kari Grete Offerdal - Kåre Offerdal
- Kåre Johannes Offerdal - Monica Offerdal
- Monica Finnanger Offerdal - Rune Offerdal
- Rune Offerdal - Tore Ørsal Offerdal
- Torolf Offerdal - Kjell Offergaard
- Malin Therese Offergaard - Gry Offernes
- Karl Gunnar Offernes - Bjørn Offigstad
- Bjørn Offigstad - Robert Leif Offner
- David Robert Offord - Eiliv Ofigsbø
- Erik Sylfest Ofigsbø - Mohamed Ofkir
- Mohamed Ofkir - Emmanuel Amo Ofori
- George Ofori - Simons Ofori-Amanfo
- Godtfried Ofosu - Jan Roger Ofrim
- Jan Simen Ofrim - Chino Flavie Ofrin
- Christian Perales Ofrin - Anita Hammervik Ofstad
- Ann Helen Ofstad - Anne-Mari Rokseth Ofstad
- Anne-Marie Ofstad - Aslaug Ofstad
- Astrid Ofstad - Bersvein Ofstad
- Betzy Ofstad - Bjørnar Ofstad
- Britt Karin Ofstad - Dag Ryen Ofstad
- Dordi Oline Ofstad - Elin Ofstad
- Elin Ofstad - Emil Andreas Ofstad
- Endre Grüner Ofstad - Frits Johannes Ofstad
- Frode Ofstad - Gørild Ryen Ofstad
- Haldis Ofstad - Ida Gundersen Ofstad
- Idar Ofstad - Ingjerd Ofstad
- Ingrid Sofie Ofstad - Johann Fredrik Ofstad
- Johannes Ofstad - Jon Nikolai Ofstad
- Jonny Fred Ofstad - Kari Margrete Hoem Ofstad
- Karianne Kaas Ofstad - Knut Ofstad
- Knut Ofstad - Lars Lunke Ofstad
- Lars Øyvind Ofstad - Linn Jeanette Ofstad
- Lisa A Ofstad - Malgorzata Ofstad
- Malin Larsson Ofstad - Martin Ofstad
- Merete Ofstad - Nils Kristian Ofstad
- Nils Magne Ofstad - Peder Engeset Ofstad
- Per Ofstad - Ragnhild Bjørlykhaug Ofstad
- Ragni Ofstad - Roland Ofstad
- Roland Ofstad - Sindre Nilsen Ofstad
- Siri Ofstad - Sylva Ofstad
- Sylvi Ofstad - Tone Ofstad
- Tone E G Ofstad - Trond Ofstad
- Trude Merethe Ofstad - Øyvind Ree Ofstad
- Anne-Lise Høgelid Ofte - Hellbjørg Ofte
- Hilde Karen Ofte - Kjetil Ofte
- Kjetil Ofte - Øystein Ofte
- Øyvind Lillefosse Ofte - Grethe Oftebro
- Hallvard Fæhn Oftebro - Kjetil Oftebro
- Kristin Oftebro - Sindre Kaldestad Oftebro
- Sunniva Oftebro - Anne-Helen Oftedahl
- Arne Oftedahl - Hege Oftedahl
- Helene Cecilie Oftedahl - Leif J Oftedahl
- Lilja Oftedahl - Rune Oftedahl
- Rune Oftedahl - Aarstein Oftedal
- Alexander Oftedal - Anita Fidjeland Oftedal
- Ann Elisabeth Oftedal - Ben Roy Oftedal