We have so far registered 92,376 seafarers
| Name | Born | Place of birth (place of living shown if missing) | | Harald Andreas Øresvik | January 9, 1884 | Born in Rødøy | |
| Birger Sverre Ørevik | June 21, 1909 | Born in Bergen | |
| Gabriel Øritsland | June 17, 1904 | Born in Haugesund | |
| Thorbjørn Øritzland | 1882 | Lived in Haugesund | |
| Eivind Tidemann Ørjansen | December 12, 1910 | Born in Svolvær | |
| Henrik Ørjansen | | | |
| Knut Ørjansen | June 14, 1917 | Born in Bergen | |
| Gulleik Ørke | August 2, 1897 | Born in Stavanger | |
| Edvin Ørlund | January 6, 1905 | Born in Kragerø | |
| Birger Ørmen | February 22, 1911 | Born in Nøtterøy | |
| Aslaug Marianne Ørndal | February 18, 1922 | Born in Egge | |
| Jan August Ørner | April 27, 1924 | Born in Nordstrand | |
| Arne Wadel Olsen Ørnholt | May 5, 1918 | Born in Tromsø | |
| Kjell Oddvar Ørnholt | January 28, 1922 | Born in Østre Aker | |
| Ørnulf Johan Ørnholt | November 10, 1923 | Born in Østre Aker | |
| Makal Ørpetveit | April 1, 1915 | Born in Haugesund | |
| Abraham Olsen Ørsland | 1852 | Born in Ørsland | |
| Andreas Jacob Ørsland | 1861 | Born in Ørsland | |
| Svenn Ørvig | August 4, 1920 | Born in Bergen | |
| Thor Ørvig | December 14, 1891 | Born in Kragerø | |
| Kristian Anker Ørvik | February 28, 1893 | Born in Kragerø | |
| Are Svendsen Ørvika | June 5, 1914 | Born in Fon i Re | |
| Gunnar Øsleby | July 27, 1909 | | |
| Johannes Øslebø | July 11, 1920 | Born in Kristiansand | |
| Albert Øsstein | November 7, 1913 | Born in Nøtterøy | |