| Site name | Country | County | Nearest town | Site type | Access | Classification (girth in metres) | View on map |
|---|---|---|---|---|---|---|---|
| Ladbroke | England | Warwickshire | Southam | churchyard | Yes | Notable | View On Map |
| Lady Anne Dawson Temple | Ireland | Co. Monaghan | Armagh | estate | No | Notable | View On Map |
| Lakeside – Landing Knott Wood | England | Cumbria | Bowness-on-Windermere | woodland | Yes | Notable | View On Map |
| Lalacelle | France | Orne - Normandie | Alencon | churchyard | Yes | Ancient 7m+ | View On Map |
| Lamberhurst | England | Kent | Royal Tunbridge Wells | churchyard | Yes | Ancient 7m+ | View On Map |
| Lambs’ Green | England | Dorset | Bournemouth | footpath/road | No | Notable | View On Map |
| Lampeter | Wales | Ceredigion | Lampeter | churchyard | Yes | Ancient 4m-5m | View On Map |
| Lampeter Velfrey | Wales | Pembrokeshire | Narberth | churchyard | Yes | Ancient 4m-5m | View On Map |
| Lanercost Priory | England | Cumbria | Carlisle | churchyard | Yes | Ancient 5m-7m, Notable | View On Map |
| Langford | England | Somerset | Cheddar | hedge | No | Ancient 5m-7m | View On Map |
| Langford Budville | England | Somerset | Wellington | churchyard | Yes | Notable | View On Map |
| Langley Manor Estate Woodland | England | Hampshire | Southampton | woodland | No | Notable | View On Map |
| Langley Marish | England | Berkshire | Slough | churchyard | Yes | Ancient 7m+ | View On Map |
| Langley Park | England | Buckinghamshire | Slough | parkland | Yes | Ancient 5m-7m, Ancient 7m+, Notable | View On Map |
| Langrish | England | Hampshire | Petersfield | garden | No | Ancient 5m-7m | View On Map |
| Langstrath Valley – Stonethwaite | England | Cumbria | Keswick | footpath/road | Yes | Ancient 4m-5m | View On Map |
| Langton Long | England | Dorset | Blandford Forum | churchyard | Yes | Ancient 4m-5m | View On Map |
| Larchfield House | Ireland | Co. Down | Belfast | historic site | Yes | Ancient 4m-5m | View On Map |
| Larmer Tree Gardens | England | Wiltshire | Shaftesbury | historic site | Yes | Ancient 5m-7m | View On Map |
| Las Arenas | Spain | Asturias | Cangas de Onis | churchyard | Yes | Notable | View On Map |