Finn person fra Lilleaker
- Thomas Ohlsson
- Inna Okonesnikova
- Mehari Kebreab Okubagaber
- Ingeborg Oland
- Olav Frode Olason
- Ragnhild Tynes Olason
- Grzegorz Oleksy
- Jeffrey Masiglat Oliver
- Rosedalyn Tandugon Oliver
- Anette Olsen
- Anine Ruud Olsen
- Anne Cathrine Ruud Olsen
- Charlotte Olsen Olsen
- Jan Erik Olsen
- Magne Keiland Olsen
- Maria Bjørn Olsen
- May-Brith Silén Olsen
- Morten Olsen
- Ole Hakon Olsen
- Rudi Olsen
- Steffen Olsen
- Vegard Olsen
- Vegard Eivind Olsen
- Erlend Olsvik
- Sven Olav Olvin
- Sven Olav Olvin
- Christian Gjestvold Omang
- Christian Gjestvold Omang
- Gerd Unni Omang
- Svein Otto Ommundsen
- Knut Omreng
- Stian Omreng
- Isil Onan
- Stein Onarheim
- Hilde Gunn Opdal
- Camilla Opdal-Jørgensen
- Morten Opseth
- Mathilde Sofie Opshaug
- Ebba Brattensborg Oset
- Harald Osnes
- Irene Strunge Ostenfeld
- Nataliya Ostrovskaya
- Bakken Ot
- Kristin Ott
- Torunn Otterstad
- Erik Ottesen
- Cláudia Otto
- Helge Ottosen
- Kristin Oxley
- Marta P
- Christian Pahle
- Haiping Pang
- Mingze Pang
- Madhusudan Pareek
- Paul Michael Parlett
- Ambrus Pataki
- Anne-Lise Patt
- Knut Vidar Paulsen
- Lars Jakobsen Paulsen
- Pia Helene Paulsen
- Thor Magnar Paulsen
- Maida Paunovic
- Cathrine Paus
- Trine Paus
- Silje Marie Paust
- Goran Pavlovic
- Jan Pawlicki
- Bjørn Harald Pedersen
- Brith Mari Pedersen
- Hans Erik Pedersen
- Harald Pedersen
- Jan Ving Pedersen
- Jan Vidar Pedersen
- Jeanette Pedersen
- Mats Pedersen
- Mikael Pedersen
- Rune Sander Pedersen
- Steffen Pedersen
- Vidar Pedersen
- Vigdis Pedersen
- Fernando Javie Perez Fernandez
- Hege Peters
- Lars Peterson
- Nataliia Petromanova
- Anja Støyl Pettersen
- Brith Lise Pettersen
- Bård Anders Pettersen
- Grete Pettersen
- Jon Pettersen
- Sivert Oliver Pettersen
- Erik Pettersson
- Anna Pham
- Thi Kim Hang Pham
- Johannes Pinderud
- Eirik Pinslund
- Piotr Wladyslaw Pluta
- Marta Maria Poniecka
- Camilla Porsmyr
- Pia Bang Poulsen