| Site name | Country | County | Nearest town | Site type | Access | Classification (girth in metres) | View on map |
|---|---|---|---|---|---|---|---|
| Heyope | Wales | Powys | Knighton | churchyard | Yes | Ancient 4m-5m, Ancient 5m-7m | View On Map |
| Heyshott | England | Sussex - West | Midhurst | churchyard | Yes | Ancient 5m-7m | View On Map |
| Heytesbury | England | Wiltshire | Warminster | churchyard | Yes | Ancient 4m-5m | View On Map |
| Heythrop | England | Oxfordshire | Chipping Norton | churchyard | Yes | Ancient 7m+ | View On Map |
| Hiéville | France | Calvados - Normandie | Lisieux | churchyard | Yes | Ancient 4m-5m | View On Map |
| High Force – Teesdale | England | County Durham | Barnard Castle | upland | Yes | Ancient 4m-5m | View On Map |
| High Ham | England | Somerset | Street | churchyard | Yes | Ancient 4m-5m | View On Map |
| High Hoyland | England | Yorkshire - South | Barnsley | footpath/road | Yes | Notable | View On Map |
| High Melton | England | Yorkshire - South | Doncaster | garden | No | Notable | View On Map |
| Highbury Wood | England | Gloucestershire | Monmouth | earthworks | Yes | Ancient 4m-5m | View On Map |
| Highclere Castle | England | Hampshire | Newbury | former religious site | Yes | Ancient 7m+ | View On Map |
| Highnam Woods – nr Gloucester | England | Gloucestershire | Gloucester | woodland | No | Ancient 5m-7m | View On Map |
| Hillier – Sir Harold Hillier Gardens | England | Hampshire | Winchester | boundary | Yes | Notable | View On Map |
| Hillingdon | England | Greater London | London | churchyard | Yes | Lost, Notable | View On Map |
| Himley Hall | England | Staffordshire | Dudley | parkland | Yes | Ancient 7m+ | View On Map |
| Hindhead | England | Surrey | Haselmere | woodland | Yes | Ancient 4m-5m | View On Map |
| Hinton Blewett | England | Somerset | Midsomer Norton | churchyard | Yes | Lost | View On Map |
| Hinton St George | England | Somerset | Crewkerne | churchyard | Yes | Ancient 4m-5m | View On Map |
| Hirnant | Wales | Powys | Bala | churchyard | Yes | Ancient 4m-5m | View On Map |
| Hittesleigh Barton | England | Devon | Okehampton | churchyard | Yes | Lost | View On Map |