Reino Unido
Países do mundo
O
- (Gloucestershire) Oakle Street
- (Sir Powys) Old Radnor
- (Orkney Islands) Orphir
- (Angus) Oathlaw
- (City of Edinburgh) Oxgangs
- (North Yorkshire) Oxton
- (East Riding of Yorkshire) Out Newton
- (North Yorkshire) Over Silton
- (Somerset) Oake
- (Somerset) Otterford
- (Warwickshire) Old Milverton
- (Oxfordshire) Oddington
- (Oxfordshire) Over Worton
- (East Sussex) Old Heathfield
- (North Yorkshire) Old Byland
- (North Yorkshire) Oulston
- (North Yorkshire) Old Malton
- (Worcestershire) Offenham
- (Kent) Old Romney
- (Somerset) Otterhampton
- (Lancashire) Oakenclough
- (Norfolk) Oxborough
- (Cambridgeshire) Old Weston
- (Cambridgeshire) Old Hurst
- (Lincolnshire) Orby
- (Cambridgeshire) Offord Cluny
- (Norfolk) Oulton
- (Northamptonshire) Overstone
- (Nottinghamshire) Ompton
- Odell