O
Oakdale
Caerphilly
Oakenholt
Flintshire
Oakford
Ceredigion
Ochrwyth
Caerphilly
Ogmore Vale
Bridgend
Ogmore Village
Vale of Glamorgan
Ogmore-by-Sea
Vale of Glamorgan
Old Churchstoke
Powys
Old Colwyn
Conwy
Old Hall
Powys
Old Hall Wood
Powys
Old Radnor
Powys
Old Warren
Flintshire
Oldwalls
Swansea
Oleu-ffynnon
Powys
Olmarch
Ceredigion
Onen
Monmouthshire
Onllwyn
Neath Port Talbot
Overton
Wrexham
Overton
Swansea
Overton Bridge
Wrexham
Owensfield
Swansea
Oxwich
Swansea