Enlistment district
| Name | Details |
|---|---|
| Bark Ohr | Build year 1868 |
| D/S Oksø | Build year 1873 |
| D/S Olaf Kyrre | Build year 1867 |
| Knut Olavsen | Born June 30, 1917 in Oddernes |
| M/S Olav Viking | Build year 1975 |
| Brigg Olga | Build year 1852 |
| Trygve Oliegreen | Born February 10, 1915 in Oddernes |
| Sigurd Kjell Olimstad | Born June 14, 1937 in Ottersland, Austre Moland |
| Stålbark 4 master Olivebank | Build year 1892 |
| Bark Olivia | Build year 1892 |
| M/S Olsen | Build year 1990 |
| Andor Johan Olsen | Born August 14, 1891 in Bergen |
| Arne Hjalmar Olsen | Born November 4, 1896 in Kristiansand |
| Clas Olsen | Born November 16, 1912 in Kristiansand |
| Einar Johan Olsen | Born August 21, 1912 in Kristiansand |
| Endre Olsen | Born July 8, 1868 in Greipstad |
| Georg Henry Olsen | Born January 27, 1895 in Kristiansand |
| Gert Olsen | Born June 6, 1920 in Kristiansand |
| Gunerius Olsen | Born March 5, 1886 in Kristiansand |
| Gunnar Olsen | Born January 8, 1917 in Kristiansand |
| Harry Thorleif Olsen | Born January 6, 1916 in Kristiansand |
| Jacob Herman Olsen | Born December 19, 1889 in Grebstad |
| Jacob Tobias Olsen | Born April 8, 1861 in Haugevik |
| Johan Frithjof Hagen Olsen | Born May 3, 1923 in Oddernes |
| Julius Olevarius Olsen | Born May 9, 1845 in Grimstad |