B
- (An Cabhán) Blacklion
- (An Cabhán) Butlersbridge
- (County Donegal) Burtonport
- (County Donegal) Brinlack
- (County Donegal) Burnfoot
- (County Donegal) Bridge End
- (County Donegal) Ballyliffin
- (County Monaghan) Bellanode
- (An Cabhán) Ballyhaise
- (An Cabhán) Ballinagh
- (An Cabhán) Ballyconnell
- (County Monaghan) Ballybay
- (An Cabhán) Belturbet
- (County Donegal) Bundoran
- (County Donegal) Ballyshannon
- (An Cabhán) Ballyjamesduff
- (An Cabhán) Bailieborough
- (County Donegal) Ballybofey
- (County Donegal) Buncrana