Christina Orfjell till Jostein Ormset
- Christina Orfjell - Malin Suzanne Remfeldt Orfjell
- Mari Orfjell - Roots Pride International Org
- Studorg Org - Eduard Organisjan
- Jeløy Organist - Katia Orgiana
- Riina Orgla - Gelu Ionut Orha
- Gelu Ionut Orha - Kirsten Orhagen
- Knut Ivar Orhagen - Randi Stundal Orhammer
- Trond Henrik Orhammer - Andreas Orheim
- Anita Orheim - Bente Lothe Orheim
- Berit C Orheim - Eirik Ulla Orheim
- Eli Mathilde Orheim - Gjertrud Olga Orheim
- Gjøa Drabløs Orheim - Ingvild Kristine Larsen Orheim
- Jacob Orheim - Kent-Sander Orheim
- Kine Orheim - Lars Lothe Orheim
- Liv Svardal Svardal Orheim - Mikkel Orheim
- Monica Orheim - Per G Orheim
- Per Olav Orheim - Solveig Orheim
- Sondre Orheim - Torill Orheim
- Torleiv Orheim - Bjørn Edgar Orholm
- Britt Brockhoff Orholm - Hege Jeanette Orholm
- Heidi Orholm - Merete Jørgensen Orholm
- Robert Magnus Bøe Orholm - Heidi Orholt
- Henriette Fasmer Orholt - Eldar Orhuskhanov
- Ana Oria - Muhammad Oriakhel
- Muhammad Ayob Oriakhel - Jlze Oriede
- Juan Orieta - Federico Orioli
- Jene Norono Oripaypay - Denis Orishchenko
- Oleg Orishchenko - Tadeus Orjevski
- Abraham Orji - Astrid Oddveig Orkelbog
- Aud Orkelbog - Eystein Fleischer Orkelbog
- Finn Orkelbog - May Linn Orkelbog
- Morten Roar Orkelbog - Sverre Toralf Orkelbog
- Therese Normann Orkelbog - Wenche Orkelbog
- Ambulanse Orkh - Jarl Birger Orkås
- Mary Kristine Orkås - Milica Orlandic
- Gutierrez Orlando - Modestas Orlauskas
- Gintas Orlauskis - Bo Orlek
- Bo Orlek - Svein Rudolfsen Orli
- Thor Erling Orli - Øivind Orlie
- Anders Orlien - Håvard Orlien
- Josefine Orlien - Niri Orlien
- Ole Jakob Orlien - Monika Katarzyna Orlik
- Szymon Tomasz Orlik - Anna Aurora Orlin
- Evelyn Irene Orlin - Mariann Orlin
- Petter Stavang Orlin - Ditti Orlishta
- Duli Orlishta - Vasfije Orlishta
- Vlora Orlishta - Gunnar Orloff
- Gunnar Orloff - Edvard Orlov
- Edvard Orlov - Vladimir Orlov
- Irena Orlova - Igoris Orlovas
- Kestutis Orlovas - Ievgenii Orlovskyi
- Agnieszka Orlowska - Joanna Orlowska
- Joanna Anna Orlowska - Andrzej Pawel Orlowski
- Andrzej Pawel Orlowski - Jacek Orlowski
- Jacek Orlowski - Lukasz Orlowski
- Lukasz Orlowski - Stefan Orlowski
- Tobiasz Mateusz Orlowski - Kristin Orlund
- Line Orlund - Arvid Ormaasen
- Bente Grønn Ormaasen - Elvira Angelica Ormaasen
- Eva Margrethe Framnes Ormaasen - Line Ormaasen
- Magnus Øverenget Ormaasen - Thomas Ormaasen
- Torill Huitfeldt Ormaasen - Grethe Vikingstad Orman
- Hamza Orman - Bror Ormann
- Einar Ormann - Else Marie Ormar
- Hanne Catherine Ormar - Britt Karin Ormark
- Duanphen Ormark - Afshineh Ormaz
- Maria Ormaza - Camilla Høvik Ormberg
- Eli Johanne Ormberg - Harald Ormberg
- Helen-Sophie Ormberg - Kristen Ormberg
- Kristen Ormberg - Nils Erik Ormberg
- Nils Joar Ormberg - Kristin Ormbergstøl
- Anita Jeanette Ormbostad - Elin Olaug Ormbostad
- Erik Magne Ormbostad - Hilde Opsahl Ormbostad
- Håvard Ormbostad - Karin Kjølås Ormbostad
- Kjell Olav Ormbostad - Ola Ormbostad
- Ole Asbjørn Ormbostad - Rune Ormbostad
- Rune Ormbostad - Øystein Ormbostad
- Øystein Ormbostad - Christine Ormehaug
- Eirik Ormehaug - Geir Ormel
- Ina Thue Ormel - Eli Ormerod
- John G Ormerod - Winnie Joanna Ormerod
- Bjørg Helt Ormerud - Anne Turid Ormestad
- Asbjørn Holth Ormestad - Birgitte Ormestad
- Bjarne Ormestad - Eva Ormestad
- Eva Unni Ormestad - Hilde Ormestad
- Hilde-Christine Ormestad - Karen Ormestad
- Kirsten Ormestad - Morten Ormestad
- Nils Einar Ormestad - Roger Ormestad
- Solfrid Guthe Ormestad - Thomas Ormestad
- Thoralf Ormestad - Wenche Ormestad
- Åse Ruud Ormestad - Hans Eivind Ormestøyl
- Kari Ormestøyl - Vidar Ormestøyl
- Alf Bjørn Ormevik - Britt-Laila Ormevik
- Camilla Ormevik - Kathrine Ormevik
- Kjersti Ormevik - Nils Ormevik
- Ottar Ormevik - Ingrid Birgithe Mørup Ormhaug
- Jens Helge Ormhaug - Lilly Helene Ormhaug
- Maria Vang Ormhaug - May-Britt Ormholt
- May-Britt Ormholt - Tor Ormkleiv
- Unni Ormkleiv - Anette Hamberg Ormset
- Anita Ormset - Jostein Ormset