| Site name | Country | County | Nearest town | Site type | Access | Classification (girth in metres) | View on map |
|---|---|---|---|---|---|---|---|
| Boxford | England | Berkshire | Newbury | churchyard | Yes | Notable | View On Map |
| Boxley | England | Kent | Maidstone | churchyard | Yes | Ancient 7m+ | View On Map |
| Boxley – Bridleway | England | Kent | Maidstone | woodland | Yes | Notable | View On Map |
| Boxley – North Downs Way | England | Kent | Maidstone | woodland | Yes | Ancient 5m-7m | View On Map |
| Boynton | England | Yorkshire - East Riding | Bridlington | churchyard | Yes | Lost | No Map Data |
| Brabourne | England | Kent | Folkestone | churchyard | Yes | Ancient 4m-5m, Lost | View On Map |
| Brackley | England | Northamptonshire | Banbury | garden | No | Notable | View On Map |
| Bradfield | England | Berkshire | Reading | churchyard | Yes | Notable | View On Map |
| Brailsford | England | Derbyshire | Derby | churchyard | Yes | Ancient 5m-7m | View On Map |
| Bramdean | England | Hampshire | Winchester | hedge | No | Ancient 5m-7m | View On Map |
| Brampton Bryan | England | Herefordshire | Knighton | garden | Yes | Notable | View On Map |
| Bramshaw | England | Hampshire | Southampton | churchyard | Yes | Notable | View On Map |
| Bramshott | England | Hampshire | Haslemere | churchyard | Yes | Ancient 4m-5m | View On Map |
| Bramshott – Rectory Lane | England | Hampshire | Haslemere | garden | No | Ancient 5m-7m | View On Map |
| Branscombe | England | Devon | Seaton | churchyard | Yes | Notable | View On Map |
| Brasted | England | Kent | Sevenoaks | churchyard | Yes | Notable | View On Map |
| Bray – Co Wicklow | Ireland | Co. Wicklow | Dublin | churchyard | Yes | Notable | View On Map |
| Breamore | England | Hampshire | Salisbury | churchyard | Yes | Ancient 7m+ | View On Map |
| Breamore Park | England | Hampshire | Salisbury | parkland | No | Ancient 5m-7m | View On Map |
| Brecon Cathedral | Wales | Powys | Brecon | churchyard | Yes | Notable | View On Map |