| Site name | Country | County | Nearest town | Site type | Access | Classification (girth in metres) | View on map |
|---|---|---|---|---|---|---|---|
| Tyninghame House | Scotland | East Lothian | Dunbar | former religious site | No | Ancient 4m-5m | View On Map |
| Tytherley – Queenwood | England | Hampshire | Romsey | planted avenue | No | Notable | View On Map |
| Ubley | England | Somerset | Bristol | churchyard | Yes | Ancient 4m-5m | View On Map |
| Udimore | England | Sussex - East | Rye | churchyard | Yes | Ancient 4m-5m | View On Map |
| Uffculme House – Kings Heath | England | West Midlands | Birmingham | garden | Yes | Lost | View On Map |
| Uffmoor Wood – Hagley | England | Worcestershire | Halesowen | woodland | Yes | Ancient 4m-5m | View On Map |
| Ufton Nervet | England | Berkshire | Reading | churchyard | Yes | Ancient 5m-7m, Notable | View On Map |
| Ulcombe | England | Kent | Maidstone | churchyard | Yes | Ancient 5m-7m, Ancient 7m+ | View On Map |
| Ullingswick | England | Herefordshire | Hereford | churchyard | Yes | Ancient 4m-5m | View On Map |
| Ulverston | England | Cumbria | Barrow-in-Furness | churchyard | Yes | Lost | View On Map |
| Up Cerne | England | Dorset | Dorchester | churchyard | Yes | Ancient 4m-5m | View On Map |
| Uplyme | England | Devon | Lyme Regis | churchyard | Yes | Ancient 7m+ | View On Map |
| Upminster | England | Essex | Hornchurch | churchyard | Yes | Notable | View On Map |
| Uppark | England | Sussex - West | Petersfield | garden | Yes | Ancient 5m-7m | View On Map |
| Upper Breinton | England | Herefordshire | Hereford | hedge | Yes | Ancient 5m-7m | View On Map |
| Upper Chapel (Dyffryn Honddu) | Wales | Powys | Brecon | churchyard | Yes | Ancient 4m-5m, Ancient 5m-7m, Notable | View On Map |
| Upper Froyle | England | Hampshire | Alton | churchyard | Yes | Ancient 4m-5m | View On Map |
| Upper Hardres | England | Kent | Canterbury | churchyard | Yes | Ancient 4m-5m, Ancient 5m-7m | View On Map |
| Upper Kinsham – church | England | Herefordshire | Presteigne | churchyard | Yes | Ancient 5m-7m | View On Map |
| Upper Swanmore | England | Hampshire | Bishop's Waltham | garden | No | Ancient 5m-7m | View On Map |