Finn person fra Frogner Oslo
- Mona Omar
- Shiralam Omarkheil
- Andreas Omland
- Torjus Andreas Halvorsen Omland
- Krom Scheibert Ommen
- Katarina Omsted
- Wilhelm Omsted
- Shirley Ong
- Annette Onken
- Anne Brit Onsager
- Anni Onsager
- Ester-Adrien Licknes Onsager
- Julia Onsen
- Christina Elisabeth Sverdrup Onsrud
- Wenche Onsrud
- Fredrik Lossius Opdahl
- Kathinka Wik Opdal
- Gertjan Ophoff
- Morten . Ophus
- Stein Einar Opjordsmoen Ilner
- Henrik Oppedal
- Ola Oppegaard
- Svend Andreas Nervik Oppegaard
- Helene Marie Opsahl
- Irene Opsahl
- Kari Opsahl
- Rikke Opsahl
- Terje Eika Opsahl
- Thomas Otnes Opsahl
- Renate Opskar
- Renate Geitrheim Opskar
- Anja Opstad
- Daniel Nikolai Opsvik
- Thor Magne Orkelbog
- Johan Orlin
- Johan Orlin
- Patricia Korsgaard Orrell
- Fabio Orsini
- Oddlaug Karoline Os
- Turkmeny Osama
- Olga Osborg
- Tore Oseberg
- Leif Osen
- Julia Osinska
- Sara Ida Helene Oskal
- Nicholas Christopher Oslington
- Muawia Alser Suleiman Osman
- Frederik Bull Osmundsen
- Nina Merete Ostad
- Sten Werner Osther
- Ina Skjåstad Ostnes
- Pawel Osuch
- Joice Otten
- Richard Johan Alphons Otten
- Unni Kathe Ottersland
- Bianca Bratsberg Ottesen
- Millie Cathrine Ottesen
- Felicia Tatiana Ouedraogo Constant
- Marit Oulie
- Sverre Anker Ousdal
- Erik Overgaard
- Sondre Ovnerud
- Erik Owe
- Alexis Owen
- Erlend Owesen
- Ingeborg W. Owesen
- Alexander Owren
- Aleksandra Owsik
- Ansis Janis Ozolins
- Sara P. Izadi
- Paula Lucja Padewska
- Florin Paduraru
- Heike Pagel
- Mahesh Panemangalore Pai
- Dominik Pajor
- Eray Pak
- Eva Mari Sørøy Pak
- Vladimir Pak
- Sheida Charlotte Pakzamir
- Daniel Humberto de Jesus Palacios Marchesini
- Mae Diane S. Palamano
- Kirsten Margrethe Paldan
- Julia Palmgren
- Lars Jesper Robertsen Palmqvist
- Mattias Joel Palmqvist
- Raisa Palomania
- Shilin Pan
- Fa Ngan Pang
- Stefanos Papantoniou Or Papadoniu
- Vaishali Parab
- Adam Bartosz Parfiniewicz
- Aejin Park
- Jason Park
- Kristin Parnemann
- Christopher Parr
- Hans Parr Lampe
- Reza Parseh
- Reza Parseh
- Jonas Viken Parthaugen