Ranveig Osa till Steinar Vik Oseberg
- Ranveig Osa - Stig Rune Osa
- Svein Osa - Trude Osa
- Trygve Osa - Rafal Osadca
- Rafal Osadca - Evelyn Osadolor
- Juliana Osadtsaja - Mark Phillip Osaer
- Blessing Osaetin - Esther Osaghae
- Esther Osaghae - Sandra Osagie
- Joy Osagiede Osagiede-Thov - Alicja Justyna Osak
- Marian Janusz Osak - Eric Chika Bye Osakwe
- Glen Izah Bye Osakwe - Anja Osaland
- Ann Mette Osaland - Bente Grimstad Osaland
- Brit Grete Osaland - Eivind Osaland
- Elisabeth Osaland - Geir Helge Osaland
- Gerd Anita Osaland - Hans Petter Osaland
- Hans Petter Osaland - Ingvild Berge Osaland
- Ivar Osaland - Jostein Osaland
- Jostein Hagen Osaland - Magne Osaland
- Maiken Therese Osaland - Oddrun Bøe Osaland
- Oddrun Bøe Osaland - Reidun Osaland
- Reidun Hagen Osaland - Stig Osaland
- Susanne Osaland - Torleif Osaland
- Trine Osaland - Rija Osama
- Anne Brit Osan - Roy-Vidar Osan
- Stian Osan - Friday Egbe Osarenkhoe
- Joy Osarenkhoe - Etinosa Blessing Osasere
- Joy Esther Osass - Marit Favour Osaze
- Bolton Osazee - Hans Christian Osbak
- Hans Olav Osbak - Unni Osbak
- Yngve Osbak - Camilla Osbakk
- Christina Anett Osbakk - Ida Marie Osbakk
- Ingeborg Osbakk - Karin Marie Osbakk
- Karl Henning Osbakk - Raymond Edgar Osbakk
- Reidar Osbakk - Therese Kristin Osbakk
- Thomas Holm Osbakk - Sara Madeleine Osbeck
- Sofie Karoline Osbeck - Camilla Osberg
- Camilla Osberg - Espen Osberg
- Eva Osberg - Helge Osberg
- Henning Osberg - Jan Otto Osberg
- Jan Otto Osberg - Juliane Myrmo Osberg
- Julie Kjempenes Osberg - Lene Osberg
- Liv Solfrid Osberg - Otto Osberg
- Per Osberg - Siren Osberg
- Steinar Osberg - Tor Bjørn Andresen Osberg
- Tore Osberg - Arnar Osborg
- Bjørn Osborg - Grethe Osborg
- Gudny Osborg - Kari Anne Osborg
- Kari Anne Osborg - Per Arne Osborg
- Petter Osborg - Torunn Osborg
- Trond Mo Osborg - Anne Brettingen Osborne
- Anne Brettingen Osborne - Janet Denise Osborne
- Jason Russell Osborne - Elin Sofia Oscander
- Cafe Oscar Bord - Bjørn Einar Oscarsen
- Ekaterini Oscarsen - Sonny Waldemar Oscarson
- Anne-Brit Oscarsson - Mattias Oscarsson
- May-Lill Oscarsson - Frank Oschmann
- Agata Oscilowska - Arnfinn Kenneth Osdal
- Astrid Audhild Osdal - Bård Osdal
- Dag Terje Osdal - Gunn Kristin Osdal
- Hanne Bigseth Osdal - Hulda Osdal
- Idar Bertil Osdal - Jarle Osdal
- Jarle Osdal - Lars Helge Osdal
- Lars Inge Osdal - Martine Osdal
- Mary Kristine Osdal - Ragnar Didrik Osdal
- Randi Anne Osdal - Sissel Osdal
- Siv Helle Osdal - Storm Severin Osdal
- Sunniva Lund Osdal - Vilde Lund Osdal
- Wenke Lid Osdal - Charlotte Osdalen
- Gine Osdalen - Torleif Osdalen
- Øyvind Osdalen - Aleksander Nilsen Ose
- Alexander Ose - Ann Karin Wendelborg Ose
- Annbjørg Johanne Ose - Arne Olai Ose
- Asbjørn Ose - Berit Ose
- Berit Kipperberg Ose - Christine Due Ose
- Dace Dizbite Ose - Eirunn Ose
- Eivind Ose - Elisabeth Berild Ose
- Elisabeth Røsstad Ose - Gerhard Myrseth Ose
- Grete Ose - Gunstein Ose
- Guro Cecilie Botn Ose - Heidi Theresa Ose
- Heidrun Ose - Ingeline Bjørdal Ose
- Inger Bjørseth Ose - Janne Lise Ose
- Jannicke Øverli Ose - Karin Anne Ose
- Karin Gunver Torstensen Ose - Knut Ose
- Knut Nesland Ose - Lars Otto Lofthus Ose
- Lars Petter Ose - Magnar Ose
- Magnar Ose - Mathias Berild Ose
- May Britt Ose - Oddvin Ose
- Ola Ose - Petter Ose
- Ragnhild Ose - Sigmund Ose
- Signe Ose - Steinar Ose
- Steinar Ose - Svein Johann Ose
- Svein Olav Ose - Tor Steinar Ose
- Torgeir Ose - Rønnaug Ose Velle
- Vidar Ose - Mirjam Ose-Velle
- Ronja Sundby Ose-Velle - Ernst Ivar Oseassen
- Hildur Judith Oseassen - Camilla Osebakken
- Carolina Tveit Osebakken - Kåre Osebakken
- Lasse Osebakken - Sverre Osebakken
- Tone Veslemøy Osebakken - Anne Grete Ervik Oseberg
- Anne Sæbø Oseberg - Ella Oseberg
- Ellen Katharina Øwre Aalberg Oseberg - Harald Oseberg
- Hege Oseberg - Steinar Vik Oseberg