| Flagge | Schiffsname | Nummer | |||
|---|---|---|---|---|---|
 | Oberon | 04016760 | |||
 | Ocean | 02327056 | |||
 | Oceanic | 06003770 | |||
| Odin | 05102880 | |||
| Odina | 02319190 | |||
| Odyzee | 02323255 | |||
| Olievinker IV | 06003805 | |||
| Olympic | 02326828 | |||
| Olympic | 02319020 | |||
| Omega | 02326785 | |||
| Omega | 06002389 | |||
 | Opalin | 07000586 | |||
| Oran | 06002901 | |||
| Oranje Nassau | 02327060 | |||
| Oranje Nassau | 02320518 | |||
| Oranje Nassau II | 02331002 | |||
| Oranje Nassau III | 02330728 | |||
| Orlando | 02326780 | |||
| Oste | 05107550 | |||
| OTD. Alpha | 02329682 | |||
| Otter | 02331441 | |||
| Otto Deymann | 04008500 |