Bill O'Brien (1920 - 2009) was a naval architect residing in United Kingdom of Great Britain and Northern Ireland.
| Tip ambarcaţiune | An Design | Categorie |
|---|---|---|
| Daring | 1956 | Sailing dinghy |
| Jumpahead | 1948 | Catamaran |
| Oceanic 30 | 1967 | Catamaran |
| Oceanic Mk 3 | ? | Catamaran |