We have so far registered 92,376 seafarers
| Name | Born | Place of birth (place of living shown if missing) | | Theodor Olsen | 1894 | Lived in Hvaler | |
| Tor Olsen | September 7, 1909 | Born in Sarpsborg | |
| Trygve Olsen | 1893 | Born in Fredrikstad | |
| Trygve Olsen | June 24, 1892 | Born in Glemmen | |
| Verner Olsen | October 12, 1901 | Born in Sverige | |
| Werner Knatinius Olsen | 1901 | Lived in Hvaler | |
| Wilhelm Henry Olsen | April 30, 1910 | Born in Sarpsborg | |
| Egil Olaf Olsson | June 28, 1922 | Born in Idd | |
| Rolf Omberg | August 8, 1924 | Born in Fredrikstad | |
| Helge Olaf Onanger | February 15, 1914 | Lived in Jeløy pr. Moss | |
| Marcus Onerød | April 4, 1906 | Born in Fredrikstad | |
| Leif Oskar Ophus | July 16, 1920 | Born in Siljan | |
| Sverre Kjell Opsahl | April 8, 1923 | Born in Sarpsborg | |
| Rolf Opøien | August 17, 1921 | Lived in Hagen i Askim | |
| Sverre Kristian Orefellen | March 19, 1920 | Born in Rygge | |
| Oskar Hilmar Orud | October 27, 1907 | Born in Sarpsborg | |
| Alf Oskar Anderson | August 10, 1916 | Born in Borge | |
| Jakob Osther | December 12, 1923 | Born in Bærum | |
| Gotfred Martinius Drange Osufsen | July 26, 1891 | Born in Mandal | |
| Anton Eilert Ottersen | March 29, 1901 | Lived in Møller gt. 7 Moss | |
| Odd Lie Ottersen | December 8, 1907 | Born in Glemmen | |
| Øystein N.Sofus Ottersen | October 6, 1896 | Born in Fredrikstad | |
| Harald Ottesen | October 4, 1905 | Born in Hvaler | |
| Henry Olavsen Ottesen | April 18, 1909 | Born in Fredrikstad | |
| John Fredrik Ottesen | August 26, 1907 | Born in Hvaler | |