| | OCEAN PIONEER | 1976 | 2003 |
| | OCEAN PRIMA | 1967 | 1967 |
| | OCEAN QUEST | 1970 | 2002 |
| | OCEAN RAINBOW | 1980 | 1980 |
| | OCEAN REX | 1951 | 1973 |
| | OCEAN SEAMAN | 1942 | 1942 |
| | OCEAN SPRINTER | 1962 | 1962 |
| | OCEAN STAR | 1957 | 1976 |
| | OCEAN SUCCES | 1984 | 2002 |
| | OCEAN TRADER | 1958 | 1973 |
| | OCEAN TRADER | 1973 | 1980 |
| | OCEAN UNITY | 1942 | 1963 |
| | OCEAN UNITY | 1967 | 1967 |
| | OCEAN VICTORY | 1942 | 1942 |
| | OCEANA | 1917 | 1922 |
| | OCEANA | 1945 | 1970 |
| | OCEANIA | 1962 | 1982 |
| | OCEANIA | 1972 | 1972 |
| | OCEANIC | 1977 | 1977 |
| | OCEANIC | 1982 | 2004 |
| | OCEANIC FREEDOM | 1950 | 1964 |
| | OCEANIC ICE | 1977 | 1988 |
| | OCEANIEN | 1938 | 1963 |
| | OCEANOS | 1913 | 1913 |
| | OCU | 1979 | 2003 |
| | ODCA | 1957 | 1981 |
| | ODCA II | 1957 | 1997 |
| | ODENWALD | 1922 | 1922 |