| Site name | Country | County | Nearest town | Site type | Access | Classification (girth in metres) | 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 |
| 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 |
| Ibberton | England | Dorset | Blandford Forum | churchyard | Yes | Lost | View On Map |
| Ibstone | England | Buckinghamshire | High Wycombe | churchyard | Yes | Ancient 5m-7m | View On Map |
| Ickham | England | Kent | Canterbury | churchyard | Yes | Notable | View On Map |
| Icklesham | England | Sussex - East | Hastings | churchyard | Yes | Ancient 4m-5m | View On Map |
| Ickworth House | England | Suffolk | Bury St Edmunds | garden | Yes | Ancient 4m-5m | View On Map |
| Iffley | England | Oxfordshire | Oxford | churchyard | Yes | Ancient 7m+ | View On Map |
| Ifield | England | Sussex - West | Crawley | churchyard | Yes | Ancient 5m-7m | View On Map |
| Ifield – garden yew | England | Sussex - West | Crawley | garden | No | Ancient 5m-7m | No Map Data |
| Ightham Mote Farm – Kent | England | Kent | Sevenoaks | garden | Yes | Ancient 4m-5m | View On Map |
| Ilchester | England | Somerset | Yeovil | churchyard | Yes | Notable | View On Map |