| OASE | 02332936 |  |
| OCEAAN | 02327672 | |
| OCEAN | 2327056 | |
| OCEAN DIVA | 02322031 | |
| OCEAN DIVA FUTURA | 02328645 | |
| ODEON | 02332317 |  |
| ODONATA | 2205030 | |
| OEHRINGEN | 05105320 |  |
| OHANA | 06001921 |  |
| OHANA | 02315152 | |
| OHF 238 | 04808170 | |
| OHF 277 | 04812520 | |
| OHF 73 | 04607280 | |
| OLEANDER | 02327017 | |
| OLESIA | 02325909 | |
| OLESIA | 02325908 | |
| OLIMAR | 06003362 | |
| OLYMPIC | 02326828 | |
| OMEGA | 02326785 | |
| OMEGA | 02326785 | |
| OMEGA | 02322711 | |
| ONDERNEMING IV | 2327341 | |
| ONDERNEMING IV | 02335203 | |
| ONDINE | 2006411 | |
| ONION | 02338577 | |
| OP 3855 | 05038550 | |
| OPALU | 4007640 | |
| OPUS | 02326908 | |
| ORA ET LABORA | 02326959 | |
| ORANJE NASSAU | 02329041 | |
| ORANJE NASSAU | 02327060 | |
| ORANJE NASSAU II | 02331002 | |
| ORANJE NASSAU III | 02330728 | |
| ORANJE NASSAU V | 02338486 | |
| ORANJE NASSAU VI | 02338489 | |
| ORAVA | 02318644 |  |
| ORCHILA | 02332415 | |
| ORFEO | 02336599 | |
| ORFEO II | 02335035 | |
| ORIANA | 02330688 | |
| ORIENT | 02205114 | |
| ORIENT | 02322172 | |
| ORIENTIS | 02322428 | |
| ORION | 02326583 | |
| ORION | 02323311 | |
| ORTYGIA | 02319000 | |
| OSAR | 02104608 | |
| OSCAR WILDE | 07002066 |  |
| OSCAR WILDE | 07002066 | |
| OSIRIS | 02318730 | |
| OSTARA | 02205099 | |
| OSTIA | 06105616 | |
| OSTIA | 06105616 | |
| OTD.ALPHA | 02329682 | |
| OTHELLO | 02332309 | |
| OTHENE | 02323386 | |
| OTTER | 02339161 | |
| OUTSIDER | 02327034 | |
| OXFORD | 06105018 | |