B
- (Kerry) Bunaw
- (Limerick City and County Council) Bulgaden
- (County Cork) Brownsmills
- (County Tipperary) Brookville
- (County Cork) Brooklodge
- (Clare) Broadford
- (Limerick City and County Council) Brittas
- (Kerry) Brandon
- (Kerry) Brackhill
- (County Tipperary) Bourney
- (County Cork) Bottlehill
- (Kerry) Boolteens
- (County Tipperary) Boolakennedy
- (Clare) Boherglass
- (Limerick City and County Council) Boher
- (Clare) Bodyke
- (County Cork) Bluebell
- (Kerry) Blennerville
- (Kerry) Islas Blasket
- (County Cork) Blairs Cove
- (Kerry) Blackwater Bridge
- (County Cork) Blackrock
- (Limerick City and County Council) Blackpool
- (County Cork) Bishops Village
- (County Tipperary) Birdhill
- (County Cork) Belvelly
- (Clare) Bellia
- (Clare) Bealaclugga
- (Clare) Behagh
- (Kerry) Beginish Island