| Site name | Country | County | Nearest town | Site type | Access | Classification (girth in metres) | View on map |
|---|---|---|---|---|---|---|---|
| Grimescar Wood | England | Yorkshire - West | Huddersfield | woodland | Yes | Notable | View On Map |
| Grimley | England | Worcestershire | Worcester | churchyard | Yes | Ancient 4m-5m, Notable | View On Map |
| Grimston | England | Leicestershire | Melton Mowbray | boundary | No | Notable | View On Map |
| Groes-faen | Wales | Rhondda Cynan Taf | Cardiff | churchyard | Yes | Notable | View On Map |
| Groombridge | England | Kent | Royal Tunbridge Wells | churchyard | Yes | Ancient 4m-5m | View On Map |
| Grovely Wood | England | Wiltshire | Salisbury | woodland | No | Ancient 5m-7m | View On Map |
| Guilden Sutton | England | Cheshire | Chester | churchyard | Yes | Ancient 4m-5m | View On Map |
| Guilsfield | Wales | Powys | Welshpool | churchyard | Yes | Ancient 4m-5m, Lost | View On Map |
| Gussage St Michael – near | England | Dorset | Blandford Forum | historic site | No | Ancient 5m-7m | View On Map |
| Gussage St.Michael | England | Dorset | Blandford Forum | churchyard | Yes | Ancient 4m-5m | View On Map |
| Gwenlais | Wales | Carmarthenshire | Llandeilo | former religious site | No | Ancient 4m-5m | View On Map |
| Gwernesney | Wales | Monmouthshire | Usk | churchyard | Yes | Notable | View On Map |
| Gwyddelwern | Wales | Denbighshire | Ruthin | churchyard | Yes | Ancient 4m-5m | View On Map |
| Gwydir Castle | Wales | Conwy | Betws-y-Coed | castle | Yes | Ancient 4m-5m | View On Map |
| Gwytherin | Wales | Conwy | Betws-y-Coed | churchyard | Yes | Ancient 5m-7m, Ancient 7m+ | View On Map |
| Gyffin | Wales | Conwy | Conwy | churchyard | Yes | Ancient 4m-5m, Notable | View On Map |
| Habberley – churchyard | England | Shropshire | Shrewsbury | churchyard | Yes | Ancient 4m-5m, Notable | View On Map |
| Habberley – Shropshire (1) | England | Shropshire | Shrewsbury | woodland | Yes | Ancient 5m-7m | View On Map |
| Habberley – Shropshire (2) | England | Shropshire | Shrewsbury | woodland | Yes | Ancient 4m-5m | View On Map |
| Habberley Valley – Worcestershire | England | Worcestershire | Kidderminster | cliff | Yes | Notable | View On Map |