Finn person fra Slemmestad
- Anne Nylende
- Britt Nylende
- Kay Thomas Nylund
- Arild Harald Nymo
- Viktoriia Nyniuk
- Camilla Elisabeth Nyström
- Lars Harald Nyström
- Andrea Nysæther Schie
- Anette Bryn Næss
- Margrete Næss
- Margrete Næss
- Linn Katrin Nødland
- Natalie Nøstdal
- Helene Nøsterud
- O O
- Raissa Ofstad
- Rune Olafsen
- Wenche Synnøve Nyhus Olafsen
- Aase Olafsen
- Uno Olaussen
- Kathrine Olavsen
- Roy Erik Olavsen
- Anton Petrovich Olonkin
- Ekaterina Olonkina
- Luba Olonkina
- Vera Olonkina
- Anders Schanche Olsen
- Arnt-Louis Olsen
- Astri Olsen
- Birger Håkon Olsen
- Bjørn Olsen
- Bjørn Georg Olsen
- Cecilie Olsen
- Dag Olsen
- Daniela Cristina Olsen
- Geir Håvard Olsen
- Grete Olsen
- Gry Christensen Olsen
- Gunnar Harald Olsen
- Hege Dematim Olsen
- Helle Olsen
- Hilde Synnøve Hoff Olsen
- Kathe Olsen
- Kjell Olsen
- Kjell Einar Olsen
- Lukas Trondssønn Olsen
- Margrete Næss Olsen
- Matz Hoff Olsen
- Mette Berg Olsen
- Normann Olsen
- Ola Johan Olsen
- Ruth Hoksmo Olsen
- Silje Olsen
- Thomas Olsen
- Torbjørn Bigseth Olsen
- Trond-Ivar Olsen
- Vegard Theodor Olsen
- Vivi-Ann Olsen
- Wenche Olsen
- Ørjan Olsen
- Miriam Therese Olsen Marriaga
- Finn Arne Olufsen
- Torild Olfot Olufsen
- Shakur Abdullahi Omar
- Velid Omerovic
- Christian Omre
- Kristine Lyngvik Opland
- Anders Opstad
- Simon Orchard
- Julia Ore
- Kjetil Ore
- Sandra-Philomena Orheim
- Ronalds Orlovs
- Synnøve Oshaug
- Jacob August Osvold
- Kjersti Benedikte Osvold
- Kathrine Kjeldsø Oswald
- Kari Otterdal
- Annie Brith Ottesen
- Christen Ottmann
- Hanne Mette Ottmann
- Ove Martin Ovesen
- Ianko Nikolaev Ovtcharov
- Dawid Piotr Ozga
- Faraidon Palani
- Tom Stousland Parnemann
- Behnaz Nik Pasand
- Linda Jasmin Pascalis
- Aleksandra Pasek
- Shipra Pathak
- Vishal Pathak
- Karine Patterson
- Liam Kristian Patterson
- Luke Daniel Patterson
- Mats Dylan Patterson
- Diana Paulsen
- Hans John Paulsen
- Ivar Charles Paulsen
- Jorunn Paulsen