Collection
| Prev 20 | A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| Name | IMO | Flag | Build/Gross | Type | |
| Oriental Pine | 7701299 | PAN | 1978 / 12324 | Vehicle carrier | |
| Orion | 7227164 | FIN | 1973 / 4469 | Roro | |
| Orion Diamond | 8125844 | PAN | 1982 / 19280 | Vehicle carrier | |
| Orion Highway | 8401224 | LBR | 1984 / 44576 | Vehicle carrier | |
| Orion Leader | 9182289 | PAN | 1999 / 57513 | Vehicle carrier | |
| Ortviken | 9087374 | SWE | 1996 / 20154 | Roro / Cargo |
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| Osprey | 6804434 | USA | 1968 / 31517 | Roro | |
| Ostrand | 9087362 | SWE | 1996 / 20171 | Roro / Cargo | |
| Otello | 7362548 | SGP | 1974 / 23761 | Vehicle carrier | |
| Otello | 8919934 | SWE | 1992 / 52479 | Vehicle carrier | |
| Otello | 6706785 | SWE | 1967 / 2274 | Roro / Cargo | |
| OXL Lotus | 9144471 | ATG | 1997 / 5772 | Roro / Cargo |
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