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
| CHARTER | SKIPPER/OWNER | PORT | LOCATION |
| 'O' | Steward Drury | Tyne | Northumberland |
| OBERON | John Keggie | dunsatffnage | Scotland |
| OFFSHORE REBEL | Paul Whittall | Weymouth | Dorset |
| ORCA | Mike Watson | Stranraer | Scotland |
| OCEAN BLUE CHARTERS | Various Skippers | Poole | Dorset |
| OCEAN CRUSADER | Mick or Dennis | Bridlington | East Yorkshire |
| OCEAN STAR | Lee Spotswood | Liverpool | Merseyside |
| OCEAN WARRIOR | Dave | Newhaven | East Sussex |
| OLIVIA JEANNE | Martin | Rhyl | North Wales |
| ON A PROMISE | Dave Thompson | Berwick-Upon-Tweed | Scotland |
| ON YER MARKS | Ian Burret | Luce Bay | Scotland |
| ON YER MARKS TOO | Ian Burret | Luce Bay | Scotland |
| ORION | Jim | Cork | Ireland |
| OSIRIS | - | Grimsby | Lincolnshire |
| OSPREY | Steve Webber | Minehead | Somerset |
| OSPREY | Gabby Hughes | Rhyl | North Wales |
| OUR FREDA | - | Bridlington | East Yorkshire |
| OUR FREDA | Steve Holland | Luce Bay | Scotland |
| OUR GEMMA | Merve Minns | Poole | Dorset |
| OUR JOE-L | Simon Pedley | Paignton | Devon |
| OUR JOY | Vernon Parker | Littlehampton | West Sussex |
| OUTRIDER 2 | Mick McKenna | Beaumauris | Anglesey, North Wales |
| OUT OF BLUE | Richard Seager | Guernsey | Channel Islands |
| OUT RAGE | Rod Thompson | Weymouth | Dorset |
| OWIS | Steven Farinha | Liverpool | Merseyside |