Finn person fra Mysen
- Abdinuur Olad
- Anne Lise Olafsen
- Erik Olafsrud
- Marie Elisabeth Olafsrud
- Sander Daljord Olafsrud
- Truls Olafsrud
- Hege M Olausen
- Inger Olausen
- Kjell Harry Olausen
- Marit Elisabeth Olausen
- May-Lene Olausen
- Rolf Ole Olausen
- Siv-Jorun Olausen
- Randes de Oliveira
- Aleksander Oliwko
- Anne Britt Olsborg-Somby
- Anne Torp Olsen
- Anne-Lise Olsen
- Arne Olaf Olsen
- Aud Olsen
- Birger Olsen
- Bjørn Christian Torp Olsen
- Else Berit Olsen
- Frida Olsen
- Geir-Rune Olsen
- Hallstein Olsen
- Henning Kjemperud Olsen
- Jill Helene Olsen
- Jorun Synøve Olsen
- Karl Hans Olsen
- Kathrine Olsen
- Lisbeth Olsen
- Liv-Mette Olsen
- Marit Synnøve Lunde Olsen
- Martin Bolstad Olsen
- Mary Synnøve Olsen
- Ole Martin Olsen
- Ole Petter Olsen
- Per Olaf Olsen
- Randi Synøve Olsen
- Robert Alan Olsen
- Roy Terje Olsen
- Stian Olsen
- Terje Olsen
- Tomas Olsen
- Tommy Olsen
- Tom Roger Olsen
- Toril Olsen
- Torill Kristin Olsen
- Venke Lisbeth Olsen
- Willy Andre Olsen
- Tobias Olsen Hagen
- Helen Olsson
- Stian Olsson
- Torill Olsson
- Ibrahim Nur Omar
- Muhyidin Mukhtar Omar
- Iman Omarova
- Linda Omarova
- Ayida Hussein Omer
- Mia Omholt
- Stian Alfsen Omholt
- Laila Omsland
- Erlend Svendsen Opheim
- Elisabeth Karoline Opsahl
- Inger Johanne Opsahl
- Jonas Opsahl
- Jon Erik Opsahl
- Anne Berit Opsahl-Engen
- Inger-Johanne Opsahl-Engen
- Camilla Orderud
- Daniela Orderud
- Daniela Orderud
- Ingerid Orderud
- Ivar Orderud
- Joachim Orderud
- Joachim Orderud
- Laila Orderud Skram
- Diego Raul Farfan Ordonez
- Charity Oronfaye
- Henreta Orzekauskiene
- Linda Marie Os
- Torstein André Os
- Kari Synnøve Osflaten
- Robert Oshana
- Abdirahman Ali Osman
- Abdirisaq Khalif Osman
- Aran Saman Osman
- Elias Osman
- Laila Omar Abdulgalil Osman
- Anny Ospedal
- Stian Ostlund
- Linda Reneé Harila Ostorp
- Ove Magnus Ostorp
- Gøril Marie Ottermo
- Tina Ottersen
- Fredrik Adelsten Owrum
- Wojciech Maciej Paciorkowski
- Dragoslav Paden