- ONE LIFE Sailing 227595520 — —
- ONE LIFE Sailing 228330740 — —
- ONE LIFE 2.2 Sailing 227370150 — —
- ONE PLANET Sailing 228448700 — CLASS B
- ONE-X Sailing 228233560 — CLASS B
- ONEIDA Sailing 227796240 — —
- ONEIRA Other 228147350 — —
- ONEIROS Sailing 227748140 — —
- ONELIFE Sailing 227811940 — CLASS B
- ONELOVE Sailing 227393540 — CLASS B
- ONENO Sailing 227889340 — CLASS B
- ONIA Pleasure craft 227932220 — —
- ONIRIC Sailing 227169780 — —
- ONIROS Sailing 227056730 — —
- ONLY ONE LIFE Sailing 227530790 — CLASS B
- ONTARIO Sailing 228004760 — CLASS B
- ONVAOU Pleasure craft 227404210 — CLASS B
- ONVAOUKAN Pleasure craft 228311360 — —
- ONYX Cargo 226009590 — —
- ONYX Passenger 226010020 — —
- ONZ'BAR DE Pleasure craft 227982770 — —
- ONZE Sailing 227328820 — —
- OODETTE Sailing 227534480 — CLASS B
- OONA Sailing 227392140 — CLASS B
- OONA Pleasure craft 228280880 — —
- OPALE Pleasure craft 228291490 — —
- OPALE 4 Sailing 228179860 — CLASS B
- OPALE II Sailing 228012880 — —
- OPALIA Sailing 228215280 — —
- OPARI Other 227181170 — —
- OPARI 2 Sailing 228199220 — —
- OPEN BASS Sailing 228254480 — —
- OPHELIE Sailing 227355710 — —
- OPHIR Sailing 227119850 — —
- OPHIR Sailing 227828720 — —
- OPIUM Other 227170630 — —
- OPIUM Sailing 227294260 — —
- OPOPONAX Other 227499290 — —
- OPOPOP Sailing 227288660 — CLASS B
- OPPORTUNE Sailing 227227970 — —
- OPTI SOLO SAILOR Other 228229710 — —
- OPTIMIST Sailing 227205560 — CLASS B
- OPTIMIST Sailing 227234430 — CLASS B
- OPTIMIST Sailing 228070140 — CLASS B
- OPTIVENT High-speed craft 228490600 — PORT JOINVILLE
- OPUS Sailing 228111750 — —
- OPUS 1 Pleasure craft 227815530 — CLASS B
- ORAN MOR Sailing 227950230 — —
- ORANE Sailing 227701730 — —
- ORANGE BLEUE Sailing 227101010 — —
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