| Site name | Country | County | Nearest town | Site type | Access | Classification (girth in metres) | View on map |
|---|---|---|---|---|---|---|---|
| Crofton Old Church | England | Hampshire | Fareham | churchyard | Yes | Lost | View On Map |
| Crom Castle | Ireland | Co. Fermanagh | Newtownbutler | castle | Yes | Ancient 4m-5m | View On Map |
| Crossway – Brilley | England | Herefordshire | Kington | footpath/road | Yes | Ancient 4m-5m, Lost | View On Map |
| Crosthwaite | England | Cumbria | Keswick | churchyard | Yes | Lost | View On Map |
| Crowcombe | England | Somerset | Watchet | churchyard | Yes | Ancient 4m-5m | View On Map |
| Crowhurst – Surrey | England | Surrey | Reigate | churchyard | Yes | Ancient 7m+ | View On Map |
| Crowhurst – Sussex | England | Sussex - East | Hastings | churchyard | Yes | Ancient 4m-5m, Ancient 5m-7m, Ancient 7m+ | View On Map |
| Crowmarsh Gifford | England | Oxfordshire | Wallingford | churchyard | Yes | Notable | View On Map |
| Croxdale Hall | England | County Durham | Durham | parkland | No | Ancient 4m-5m | View On Map |
| Cruguel | France | Brittany | Ploermel | churchyard | Yes | Ancient 5m-7m | View On Map |
| Crundale | England | Kent | Ashford | churchyard | Yes | Ancient 4m-5m | View On Map |
| Crux Easton | England | Hampshire | Newbury | churchyard | Yes | Lost | View On Map |
| Cruxton Castle | Scotland | Renfrewshire | Glasgow | castle | No | Lost | View On Map |
| Crynant | Wales | Neath Port Talbot | Neath | churchyard | Yes | Ancient 5m-7m | View On Map |
| Cubley | England | Derbyshire | Uttoxeter | churchyard | Yes | Ancient 4m-5m | View On Map |
| Cucklington | England | Somerset | Wincanton | churchyard | Yes | Ancient 4m-5m, Notable | View On Map |
| Cudham | England | Greater London | Sevenoaks | churchyard | Yes | Ancient 7m+ | View On Map |
| Cuissai | France | Orne - Normandie | Alencon | churchyard | Yes | Ancient 4m-5m | View On Map |
| Culbone | England | Devon | Minehead | churchyard | Yes | Notable | View On Map |
| Cullompton | England | Devon | Exeter | churchyard | Yes | Lost, Notable | View On Map |