| Site name | Country | County | Nearest town | Site type | Access | Classification (girth in metres) | View on map |
|---|---|---|---|---|---|---|---|
| Cobley Wood | England | Hampshire | Whitchurch | woodland | No | Ancient 5m-7m | View On Map |
| Cocking | England | Sussex - West | Midhurst | woodland | No | Ancient 4m-5m | View On Map |
| Coddenham | England | Suffolk | Stowmarket | churchyard | Yes | Notable | View On Map |
| Codford St Mary | England | Wiltshire | Warminster | churchyard | Yes | Notable | View On Map |
| Codsall | England | Staffordshire | Wolverhampton | churchyard | Yes | Ancient 4m-5m, Ancient 5m-7m | View On Map |
| Coed Beddick | Wales | Monmouthshire | Tintern | woodland | Yes | Ancient 4m-5m | View On Map |
| Coed Wen | Wales | Monmouthshire | Newport | woodland | Yes | Ancient 4m-5m | View On Map |
| Coed-ladyr | Wales | Gwynedd | Bala | churchyard | Yes | Lost | View On Map |
| Cofton Hackett | England | Worcestershire | Bromsgrove | churchyard | Yes | Ancient 5m-7m | View On Map |
| Coity | Wales | Bridgend | Bridgend | churchyard | Yes | Ancient 4m-5m | View On Map |
| Colaton Raleigh | England | Devon | Budleigh Salterton | churchyard | Yes | Ancient 5m-7m | View On Map |
| Cold Aston (Aston Blank) | England | Gloucestershire | Bourton on the Water | churchyard | Yes | Ancient 4m-5m | View On Map |
| Coldharbour ( Anstibury Camp ) | England | Surrey | Dorking | historic site | No | Ancient 4m-5m, Ancient 5m-7m, Notable | View On Map |
| Coldred | England | Kent | Dover | churchyard | Yes | Lost | View On Map |
| Coldridge Wood-nr Ludgershall | England | Wiltshire | Andover | woodland | Yes | Ancient 5m-7m | View On Map |
| Coldwaltham | England | Sussex - West | Petworth | churchyard | Yes | Ancient 7m+ | View On Map |
| Colemere | England | Shropshire | Ellesmere | churchyard | Yes | Notable | View On Map |
| Colemore | England | Hampshire | Alton | churchyard | Yes | Lost | View On Map |
| Coleshill – churchyard | England | Warwickshire | Birmingham | churchyard | Yes | Lost | View On Map |
| Coleshill Park | England | Oxfordshire | Swindon | woodland | Yes | Ancient 4m-5m | View On Map |