B
- (Mayo County) Brackloon North
- (Mayo County) Ballyhine
- (Mayo County) Boleyboy
- (Mayo County) Ballintadder
- (Mayo County) Bulcaun
- (Mayo County) Barnahesker
- (Mayo County) Bruff
- (Mayo County) Ballinacostello
- (Mayo County) Balloor
- (Mayo County) Ballyglass
- (Mayo County) Ballyfarnagh
- (Mayo County) Ballinrumpa
- (Mayo County) Ballyglass
- (Sligo) Ballintrofaun
- (Sligo) Ballycashel
- (Sligo) Belclare
- (Sligo) Ballygallagart
- (Sligo) Ballincurry
- (Sligo) Bellanalack Ballyfah
- (Sligo) Battefield
- (Roscommon) Banada
- (Roscommon) Ballinphuill
- (Roscommon) Buckill
- (Roscommon) Brackloon
- (Roscommon) Baslick
- (Roscommon) Breanamore
- (Roscommon) Ballyglass West
- (Roscommon) Boghtaduff
- (Roscommon) Barnaboy
- (Roscommon) Bohalas