- Bagenalstown
- Baile an Mhuilinn
- Bailieborough
- Balally
- Balbradagh
- Balbriggan
- Baldoyle
- Balla
- Ballaghaderreen
- Ballaghkeen
- Ballina
- Ballina
- Ballinabranagh
- Ballinaclash
- Ballinagar
- Ballinagh
- Ballinakill
- Ballinalee
- Ballinameen
- Ballinamore
- Ballinasloe
- Ballincar
- Ballindine
- Ballingarry
- Ballingeary
- Ballinlough
- Ballinroad
- Ballinrobe
- Ballinspittle
- Ballinteer
- Ballintober
- Ballintogher
- Ballintra
- Ballinunty
- Ballisodare
- Ballitore
- Ballivor
- Ballon
- Ballyagran
- Ballyboden
- Ballybofey
- Ballyboughal
- Ballybrittas
- Ballybunnion
- Ballycanew
- Ballycannan
- Ballycastle
- Ballyclerahan
- Ballyclogh
- Ballycolla
- Ballyconnell
- Ballycotton
- Ballycullane
- Ballycumber
- Ballydehob
- Ballydesmond
- Ballyduff
- Ballyedmond
- Ballyfarnan
- Ballyfermot
- Ballyferriter
- Ballyforan
- Ballygar
- Ballygarvan
- Ballygawley
- Ballygerry
- Ballyhaise
- Ballyhander
- Ballyhaunis
- Ballyheige
- Ballyhoge
- Ballyhooly
- Ballyjamesduff
- Ballylanders
- Ballyliffin
- Ballylinan
- Ballylongford
- Ballymacarbry
- Ballymacoda
- Ballymahon
- Ballymakeery
- Ballymore
- Ballymore Eustace
- Ballymote
- Ballymun
- Ballymurn
- Ballynacarrigy
- Ballynoe
- Ballyoulster
- Ballyporeen
- Ballyragget
- Ballyroan
- Ballyroe Cross Roads
- Ballysax
- Ballyshannon
- Ballyvaghan
- Balrothery
- Baltimore
- Baltinglass
- Banagher
- Bandon
- Bangor
- Bansha
- Banteer
- Bantry
- Barndarrig
- Barntown
- Baylin
- Bayside
- Bearna
- Beaufort
- Beaulieu Cross
- Beaulieu House
- Beaumont
- Belcarra
- Belgooly
- Bellanagare
- Bellanode
- Belmont
- Belmullet
- Belturbet
- Bennettsbridge
- Birr
- Blacklion
- Blackrock
- Blackrock
- Blackwood
- Blanchardstown
- Blarney
- Blessington
- Boherbue
- Bohola
- Bonnybrook
- Booterstown
- Borris
- Borris in Ossory
- Borrisokane
- Borrisoleigh
- Boston
- Boyle
- Brannockstown
- Bray
- Bree
- Bridebridge
- Bridge End
- Bridgetown
- Brinlack
- Brittas
- Broadford
- Brosna
- Brownstown Cross Roads
- Bruff
- Bruree
- Bunclody
- Buncrana
- Bundoran
- Bunratty
- Burnfoot
- Burtonport
- Butlersbridge
- Buttevant
- Bweeng
