- Binvoran
- Birchpark
- Bishop’s Island
- Bishopsquarter
- Black Island
- Black Rock
- Blackthorn Islands
- Blackweir Bridge
- Bleanmore
- Bodyke
- Bohaten
- Boherglass
- Boleynagoagh South
- Bolooghra
- Boolyduff
- Boolynagleragh
- Boston
- Boulliagh
- Breaghva
- Breaghva
- Breagliva
- Breckinish
- Brickhill Bridge
- Bridge of Ross
- Bridgetown
- Broadford
- Bunratty
- Bunratty East
- Bunratty West
- Burren