Reino Unido
Países do mundo
O
- (Northumberland) Ovingham
- (Derby) Overseal
- (Highland) Ockle
- (Lancashire) Oswaldtwistle
- (East Sussex) Ore
- (Manchester) Openshaw
- (Solihull) Olton
- (Nottinghamshire) Ollerton
- Oakwood
- (Argyll and Bute) Oragaig
- (Eilean Siar) Obbe
- (Newcastle upon Tyne) Old Walker
- (Wiltshire) Oxenwood
- (Wiltshire) Ogbourne Saint Andrew
- (Gloucestershire) Oldbury on the Hill
- (City and Borough of Leeds) Old Micklefield
- (City and Borough of Leeds) Ouzlewell Green
- (Highland) Oldshore Beg
- (Highland) Oldshore
- (Highland) Oldany
- (Highland) Ochtow
- (Highland) Occumster
- (Highland) Oldtown Of Aigas
- (Staffordshire) Onecote
- (Staffordshire) Okeover
- Old Kent Road
- (Brighton and Hove) Ovingdean
- (Greater London) Old Street
- (North Lanarkshire) Old Monkland
- (Sunderland) Old Penshaw