We have so far registered 92,376 seafarers
| Name | Born | Place of birth (place of living shown if missing) | | Bjarne Edvin Oming (Olsen) | December 22, 1910 | Born in Bergen | |
| Michael Langballe Onarheim | February 28, 1915 | Born in Kvinnherad | |
| Ole Severin Onarheim | September 25, 1920 | Born in Tysnes | |
| Samuel Engelaus Samuelsen Onarheim | October 2, 1914 | Born in Tysnes | |
| Sigurd Kierulf Opdahl | April 25, 1902 | Born in Bergen | |
| Thorstein Andersen Opdahl | April 17, 1896 | Born in Tysnes | |
| Asbjørn Opheim | September 9, 1916 | Born in Bergen | |
| Daniel Pedersen Oppedal | March 20, 1896 | Born in Odda | |
| Johannes Sjurson Oppedal | January 23, 1918 | Born in Gulen | |
| Jørgen Ansgar Oppedal | February 20, 1922 | Born in Bergen | |
| Arnulf Odd Heiberg Orstein | September 25, 1905 | Born in Bergen | |
| Jakob Orø | July 30, 1899 | Born in Hustad, Bud | |
| Anton Henrik Johan Osen | May 4, 1922 | Born in Florø | |
| Eivind Osmo | June 13, 1922 | Born in Hemnesberget | |
| Henrik Ingvald Osnes | May 15, 1906 | Born in Etne | |
| Kristen Edvard Osnes | May 9, 1920 | Born in Etne, Sunhordaland | |
| Johan Knutsen Otterstad | March 29, 1907 | Born in Masfjorden | |
| Johan Martin Otterstad | | Lived in Masfjorden | |
| Monrad Olaisen Otteraa | February 27, 1920 | Born in Fitjar | |
| Kåre Johan Ottesen | April 18, 1920 | Born in Bergen | |
| Mikkel Kristian Møller Ottesen | November 15, 1908 | Born in Sveio | |
| Ragnvald Johan Didrik Ottesen | February 20, 1892 | Born in Bergen | |
| Herman Ottosen | June 25, 1891 | Born in Solund | |
| Edvard Alfred Ovaldsen | May 31, 1893 | Born in Bergen | |
| Sigve Mathias Ove | January 20, 1904 | Born in Vikebygd | |