| Site name | Country | County | Nearest town | Site type | Access | Classification (girth in metres) | View on map |
|---|---|---|---|---|---|---|---|
| Bryngwyn – Powys | Wales | Powys | Hay-on-Wye | churchyard | Yes | Ancient 4m-5m, Ancient 5m-7m | View On Map |
| Bryngwyn – Rhosgoch Lane | Wales | Powys | Newchurch | footpath/road | Yes | Notable | View On Map |
| Brynhynae | Wales | Powys | Builth Wells | garden | No | Ancient 5m-7m | View On Map |
| Buckhorn Weston | England | Dorset | Gillingham | churchyard | Yes | Ancient 4m-5m | View On Map |
| Buckland – In – Dover | England | Kent | Dover | churchyard | Yes | Ancient 7m+ | View On Map |
| Buckland Abbey | England | Devon | Plymouth | garden | Yes | Lost, Notable | View On Map |
| Buckland Monachorum | England | Devon | Plymouth | churchyard | Yes | Notable | View On Map |
| Buckland Newton | England | Dorset | Cerne Abbas | churchyard | Yes | Ancient 4m-5m | View On Map |
| Buckland St Mary | England | Somerset | Chard | churchyard | Yes | Ancient 4m-5m | View On Map |
| Bucklebury | England | Berkshire | Newbury | churchyard | Yes | Lost | View On Map |
| Bucknell | England | Shropshire | Knighton | churchyard | Yes | Ancient 4m-5m, Ancient 5m-7m | View On Map |
| Bulat – Pestivien | France | Cotes d' Armor - Bretagne | Guingamp | churchyard | Yes | Ancient 4m-5m | View On Map |
| Bulley | England | Gloucestershire | Gloucester | churchyard | Yes | Ancient 5m-7m | View On Map |
| Bullington | England | Hampshire | Whitchurch | woodland | No | Notable | View On Map |
| Bunbury | England | Cheshire | Crewe | churchyard | Yes | Ancient 5m-7m | View On Map |
| Bunclody | Ireland | Co. Wexford | Carlow/Enniscorthy | garden | No | Ancient 5m-7m | View On Map |
| Burbage | England | Wiltshire | Pewsey | garden | No | Notable | View On Map |
| Burford | England | Shropshire | Ludlow | churchyard | Yes | Notable | View On Map |
| Burghill | England | Herefordshire | Hereford | churchyard | Yes | Ancient 7m+, Notable | View On Map |
| Burham | England | Kent | Rochester | footpath/road | Yes | Notable | View On Map |