B
- (County Cork) Beennamweel
- (County Cork) Bere Island
- (County Cork) Bealock
- (County Cork) Bealnablath
- (Clare) Bealaha
- (County Cork) Bay View
- (County Cork) Bawnmore
- (County Cork) Bawn Cross Roads
- (County Tipperary) Bawn
- (Kerry) Bauraneag
- (County Cork) Bartlemy
- (County Cork) Barrykilla
- (Kerry) Barrow
- (Limerick City and County Council) Barringtonsbridge
- (Limerick City and County Council) Barrigone
- (Kerry) Barraduff
- (County Waterford) Barrack Village
- (County Cork) Barnacurra
- (Limerick City and County Council) Barna
- (County Cork) Barloge
- (Limerick City and County Council) Banoge
- (County Cork) Baile Bhuirne
- (Clare) Ballyvourcher
- (County Cork) Ballyvisteen
- (County Tipperary) Ballytarsna
- (County Cork) Ballyshoneen
- (County Cork) Ballyroon
- (County Cork) Ballyre
- (Kerry) Ballyquin
- (County Tipperary) Ballypatrick