- Aasleagh
- Abbaytown
- Abbert
- Abbey
- Abbeyknockmoy
- Abbeytown
- Achill
- Achill Island
- Achill Sound
- Achillbeg Island
- Achonry
- Aclare
- Acres
- Addergoole
- Addergoole
- Addragool
- Aghacurreen
- Aghaderry
- Aghadiffin
- Aghadoon
- Aghadrestan
- Aghadrinagh
- Aghadruminsh
- Aghadunvane
- Aghagower
- Aghagowla
- Aghagrania
- Aghakilmore
- Aghalenane
- Aghaloonteen