North East
O
- Oak Tree
- Oakenshaw, North East
- Oaklands, North East
- Oakley Side
- Oaks Bank
- Oakwellgate
- Offerton, Sunderland
- Ogle
- Old Benwell
- Old Bewick
- Old Byland
- Old California
- Old Cassop
- Old Deanham
- Old Durham
- Old Eldon
- Old Eston
- Old Felton
- Old Fold, North East
- Old Hartley
- Old Hazelrigg
- Old Moor
- Old Nafferton
- Old Park, County Durham
- Old Quarrington
- Old Ravensworth
- Old Ridley
- Old Saltburn
- Old Stillington
- Old Sunniside
- Old Swarland
- Old Thornley
- Old Town, Northumberland
- Old Walker
- Old Wingate
- Orchard Grove
- Ord, East
- Ordhill
- Ordley
- Ormesby
- Ormesby Bank
- Ormesby, North
- Ornsby Hill
- Osmond Croft
- Otterburn, North East
- Ouseburn
- Ouston
- Outchester
- Over Dinsdale
- Ovingham
- Ovington, County Durham
- Ovington, Northumberland
- Owton
- Owton Manor
- Ox Close
- Oxbridge, Stockton on Tees
- Oxclose
- Oxen-le-Fields
- Oxhill
- Oxneyfield