| Site name | Country | County | Nearest town | Site type | Access | Classification (girth in metres) | View on map |
|---|---|---|---|---|---|---|---|
| Bourton | England | Dorset | Gillingham | garden | No | Ancient 4m-5m | View On Map |
| Bourton Combe | England | Somerset | Bristol | woodland | Yes | Ancient 5m-7m | View On Map |
| Bourton-on-the-Hill | England | Gloucestershire | Moreton-in-Marsh | churchyard | Yes | Lost | View On Map |
| Boutteville | France | Manche - Normandie | Sainte-Mère-Église | churchyard | Yes | Ancient 5m-7m | View On Map |
| Bovey Tracey | England | Devon | Newton Abbot | churchyard | Yes | Notable | View On Map |
| Bow Hill | England | Sussex - West | Chichester | historic site | Yes | Ancient 4m-5m | View On Map |
| Bowdon | England | Cheshire | Manchester | churchyard | Yes | Lost | View On Map |
| Bowerchalke | England | Wiltshire | Salisbury | churchyard | Yes | Notable | View On Map |
| Bowood – the Macaulay Yew | England | Wiltshire | Calne | garden | No | V - con | View On Map |
| Box Hill – nr Pixholme Court | England | Surrey | Dorking | woodland | Yes | Ancient 4m-5m | View On Map |
| Box Hill Estate | England | Surrey | Dorking | woodland | Yes | Ancient 4m-5m, Notable | 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 |
| Boxwell | England | Gloucestershire | Stroud | churchyard | Yes | Ancient 4m-5m, Lost | View On Map |
| Boynton | England | Yorkshire - East Riding | Bridlington | churchyard | Yes | Lost | View On Map |
| 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 |