| Site name | Country | County | Nearest town | Site type | Access | Classification (girth in metres) | View on map |
|---|---|---|---|---|---|---|---|
| Baglan | Wales | Glamorgan | Neath | churchyard | Yes | Ancient 5m-7m | View On Map |
| Bala lake-Glan Llyn | Wales | Gwynedd | Bala | field | Yes | Notable | View On Map |
| Balbirnie House Hotel near Markinch | Scotland | Fife | Glenrothes | garden | Yes | Notable | View On Map |
| Ballagan House – Strathblane | Scotland | Stirling | Glasgow | historic site | No | Notable | View On Map |
| Ballencleroch House – Clachan of Campsie | Scotland | East Dunbartonshire | Lennoxtown | parkland | Yes | Ancient 5m-7m | View On Map |
| Ballikinrain House – nr Balfron | Scotland | Stirling | Glasgow | estate | No | Ancient 4m-5m | View On Map |
| Ballinlough castle | Ireland | Co. Westmeath | Meath | historic site | No | Notable | View On Map |
| Ballydarton House | Ireland | Co. Carlow | Carlow | estate | No | Ancient 4m-5m | View On Map |
| Ballynakilly Wood | Ireland | Co. Carlow | Dublin | woodland | Yes | Ancient 4m-5m | View On Map |
| Ballynure | Ireland | Co. Monaghan | Dublin | estate | Yes | Ancient 4m-5m | View On Map |
| Ballyseedy Wood | Ireland | Co. Kerry | Tralee | woodland | Yes | Ancient 5m-7m | View On Map |
| Balmerino graveyard | Scotland | Fife | Cupar | churchyard | Yes | Notable | View On Map |
| Balscote | England | Oxfordshire | Banbury | churchyard | Yes | Notable | View On Map |
| Bampton | England | Devon | Tiverton | churchyard | Yes | Ancient 5m-7m, Ancient 7m+, Notable | View On Map |
| Banstead | England | Surrey | Reigate | churchyard | Yes | Lost | View On Map |
| Bantaskine | Scotland | Falkirk | Falkirk | garden | No | Notable | View On Map |
| Banwell | England | Somerset | Bristol | churchyard | Yes | Notable | View On Map |
| Bapchild | England | Kent | Sittingbourne | churchyard | Yes | Notable | View On Map |
| Barcombe | England | Sussex - East | Lewes | churchyard | Yes | Lost | View On Map |
| Barford Down (near) | England | Wiltshire | Downton | woodland | Yes | Ancient 5m-7m | View On Map |