- ORCA 4 Sailing 503185870 — CLASS B
- ORCAELLA Passenger 503543100 — CLASS B
- ORIGAMI Sailing 503121110 — —
- ORION Sailing 503102330 — —
- ORION Special purpose 503103240 — CLASS B
- ORION Fishing 503125540 — CLASS B
- ORION Pleasure craft 503203930 — CLASS B
- ORIZURU II Pleasure craft 503146870 — —
- ORLA Sailing 503058020 — CLASS B
- ORONO Pleasure craft 503179540 — CLASS B
- ORPHEUS Pleasure craft 503139270 — CLASS B
- ORRAIA Pleasure craft 503171590 — —
- ORTESSA Pleasure craft 503144990 — CLASS B
- OSCAR Pleasure craft 503070580 — —
- OSCAR Pleasure craft 503178730 — CLASS B
- OSCAR 2 Pleasure craft 503012800 — SYDNEY
- OSCAR 3 Sailing 503034210 — —
- OSCAR TOO Sailing 503159290 — —
- OSHO Pleasure craft 503099290 — CLASS B
- OSIRIS II Pleasure craft 503734400 — CLASS B
- OSPREY Pleasure craft 503182350 — —
- OSPREY Special purpose 503532800 — —
- OSPREY II Pleasure craft 503038010 — CLASS B
- OSPREY IV Sailing 503015040 — CLASS B
- OSPREY OF FALMOUTH Pleasure craft 503177640 — CLASS B
- OSPREY OF SOUTHPORT Pleasure craft 503145880 — —
- OSPREY PACIFIC EXPL Pleasure craft 503521400 — CLASS B
- OSPREY V Passenger 503137590 — —
- OSTARA Pleasure craft 503104180 — CLASS B
- OSTRO Other 503074060 — —
- OSV BANKS Special purpose 503073850 — —
- OSV DENISON Special purpose 503073860 — —
- OTAGO Tug 503186940 9278076 —
- OTAMA Sailing 503181830 — CLASS B
- OTWAY HUNTER Pleasure craft 503096150 — —
- OUI CA VA Other 503066550 — —
- OUPIE Pleasure craft 503116410 — —
- OUR AVALON Sailing 503116980 — —
- OUR HAVEN Other 503185980 — —
- OUR PEARL Pleasure craft 503143920 — —
- OUR REFLECTIONS Sailing 503157500 — CLASS B
- OUR SOMNIA Sailing 503074380 — CLASS B
- OUR UTOPIA Fishing 503024020 — —
- OUT OF AFRICA Sailing 503186890 — CLASS B
- OUT OF OFFICE Sailing 503012120 — —
- OUT OF THE BLUE Sailing 503786600 — CLASS B
- OUT TO SEE EXPLORER 1 Pleasure craft 503197980 1124231 —
- OUT YONDER Sailing 503172680 — CLASS B
- OUTAHERE Sailing 503592700 — CLASS B
- OUTER CIRCLE Pleasure craft 503164080 — —
Follow these ships in real time
A free account shows every vessel on the live map. Alerts when they arrive, leave or go silent come with a fleet on any plan from €9.99/month.