We have so far registered 92,376 seafarers
| Name | Born | Place of birth (place of living shown if missing) | | Åsmund Olsen | June 5, 1924 | Born in Frøskeland | |
| Øistein Olsen | October 9, 1923 | Born in Hadsel | |
| Oddmund M. Olsson | October 2, 1916 | Born in Dønna | |
| Petter Trygve Opheim | May 16, 1916 | Born in Narvik | |
| Solveig Opsal | May 17, 1929 | Born in Gildeskål | |
| Margrethe Pedersen Ormestad | April 6, 1912 | Born in Sandnessjøen | |
| Petter Andreas Emilsen Ormlie | May 22, 1897 | Born in Mo i Rana | |
| Gunnar Osa (Dahl Nielsen) | May 13, 1917 | Born in Meløy | |
| Aksel Oshaug | August 9, 1900 | Born in Hadsel | |
| Monrad Roger Oshaug | February 2, 1919 | Born in Hadsel | |
| Ottar Oskarson | July 17, 1917 | Born in Steigen | |
| Eivind Osmo | June 13, 1922 | Born in Hemnesberget | |
| Aage Osnes | May 22, 1929 | Born in Nyksund | |
| Nils Johan Nilsen Ostad | May 30, 1915 | Born in Vestvågøy | |
| Arne Olav Osvold | September 20, 1920 | Born in Sortland | |
| Fredrik Anton Joakimsen Osvold | August 1, 1887 | Born in Sortland | |
| Peder Amandus Joakimsen Osvold | March 31, 1890 | Born in Sortland | |
| Sigurd Brun Otervik | March 5, 1914 | Born in Stamnes | |
| Olav Johan Andreas Ottem | March 8, 1914 | Born in Bodin | |
| Arne Ingvald Ottersen | May 11, 1919 | Born in Tranøy | |
| Halvdan Arneberg Ottesen | February 15, 1907 | Born in Sortland | |
| Magne Andreas Ottesen | November 7, 1909 | Born in Sortland | |
| Olaus Vold Ottesen | June 25, 1916 | Born in Lurøy | |
| Leif Ottestad | September 23, 1920 | Born in Vågan | |
| Alf H. Overgaard | September 2, 1898 | Born in Dveberg | |