| Site name | Country | County | Nearest town | Site type | Access | Classification (girth in metres) | View on map |
|---|---|---|---|---|---|---|---|
| Howell Wood | England | Yorkshire - South | Doncaster | woodland | Yes | Notable | View On Map |
| Huberville | France | Manche - Normandie | Valonges | churchyard | Yes | Notable | View On Map |
| Hughenden | England | Buckinghamshire | High Wycombe | churchyard | Yes | Notable | View On Map |
| Humbers Wood | England | Hampshire | Stockbridge | woodland | No | Ancient 5m-7m | View On Map |
| Hunsdon | England | Hertfordshire | Harlow | churchyard | Yes | Ancient 4m-5m | View On Map |
| Huntingdon Castle | Ireland | Carlow | Clonegal | planted avenue | No | Notable | View On Map |
| Huntington – Cliffords Coppice | England | Herefordshire | Kington | footpath/road | Yes | Ancient 4m-5m | View On Map |
| Huntley | England | Gloucestershire | Gloucester | churchyard | Yes | Ancient 7m+ | View On Map |
| Hunton – Kent | England | Kent | Maidstone | churchyard | Yes | Ancient 5m-7m, Notable | View On Map |
| Hunton Lane – Hampshire | England | Hampshire | Winchester | footpath/road | Yes | Ancient 4m-5m, Ancient 5m-7m | View On Map |
| Hursley | England | Hampshire | Winchester | churchyard | Yes | Ancient 4m-5m | View On Map |
| Hursley – Sparsholt Road | England | Hampshire | Winchester | footpath/road | Yes | Ancient 4m-5m | View On Map |
| Hurst | England | Berkshire | Reading | churchyard | Yes | Notable | View On Map |
| Hurstbourne Priors | England | Hampshire | Andover | churchyard | Yes | Ancient 5m-7m | View On Map |
| Hurstbourne Tarrant | England | Hampshire | Andover | churchyard | Yes | Notable | View On Map |
| Hutton | England | Essex | Brentwood | churchyard | Yes | Notable | View On Map |
| Hutton John | England | Cumbria | Penrith | garden | No | Notable | View On Map |
| Hylands House – Epsom | England | Surrey | Epsom | garden | No | Notable | View On Map |
| Hyssington | Wales | Powys | Bishop's Castle | churchyard | Yes | Ancient 5m-7m, Ancient 7m+ | View On Map |
| Hythe – Hampshire | England | Hampshire | Southampton | garden | No | Notable | View On Map |