- Ardakip Beg
- Ardakip More
- Arderry
- Ardvarney
- Ashakiltubbrid
- Askill
- Attimanus
- Aughnasheelan
- Aughrim
- Aasleagh
- Abbeytown
- Achill
- Achill Island
- Achill Sound
- Achillbeg Island
- Acres
- Addergoole
- Aghadiffin
- Aghadoon
- Aghadrinagh
- Aghagower
- Aghagowla
- Aghaloonteen
- Aghalusky
- Aghamore
- Aghataharn
- Aghaward
- Aghleam
- Aghoos
- Aghtaboy