| Site name | Country | County | Nearest town | Site type | Access | Classification (girth in metres) | View on map |
|---|---|---|---|---|---|---|---|
| Pen-y-clawdd | Wales | Monmouthshire | Monmouth | churchyard | Yes | Ancient 4m-5m, Ancient 5m-7m, Notable | View On Map |
| Penallt | Wales | Monmouthshire | Monmouth | churchyard | Yes | Ancient 5m-7m | View On Map |
| Pencombe | England | Herefordshire | Bromyard | churchyard | Yes | Notable | View On Map |
| Pencoyd | England | Herefordshire | Ross-on-Wye | churchyard | Yes | Notable | View On Map |
| Pendeford | England | Staffordshire | Wolverhampton | footpath/road | Yes | Ancient 5m-7m | View On Map |
| Pendoylan | Wales | Glamorgan | Cardiff | churchyard | Yes | Ancient 7m+, Notable | View On Map |
| Penegoes | Wales | Powys | Machynlleth | churchyard | Yes | Ancient 7m+ | View On Map |
| Penhow | Wales | Monmouthshire | Newport | churchyard | Yes | Notable | View On Map |
| Penjerrick | England | Cornwall | Falmouth | garden | No | Ancient 4m-5m | View On Map |
| Penkridge Hall | England | Shropshire | Church Stretton | garden | Yes | Notable | View On Map |
| Penllergaer (Valley Woods) | Wales | Glamorgan | Swansea | estate | Yes | Notable | View On Map |
| Penmark | Wales | Glamorgan | Barry | churchyard | Yes | Ancient 4m-5m, Notable | View On Map |
| Pennant Melangell | Wales | Powys | Bala | churchyard | Yes | Ancient 5m-7m, Ancient 7m+ | View On Map |
| Penpont | Wales | Powys | Brecon | churchyard | Yes | Ancient 7m+, Lost | View On Map |
| Penrhiwceiber | Wales | Glamorgan | Pontypridd | historic site | Yes | Ancient 5m-7m | View On Map |
| Penrhos – Monmouthshire | Wales | Monmouthshire | Monmouth | churchyard | Yes | Ancient 5m-7m, Lost | View On Map |
| Penrhos – Powys | Wales | Powys | Welshpool | churchyard | Yes | Ancient 4m-5m | View On Map |
| Penrhyn-coch | Wales | Ceredigion | Aberystwyth | garden | No | Lost | View On Map |
| Penryn | England | Cornwall | Falmouth | churchyard | Yes | Ancient 4m-5m | View On Map |
| Pensax | England | Worcestershire | Stourport-on-Severn | churchyard | Yes | Ancient 5m-7m | View On Map |