- Ardeevin
- Ardmeen
- Ardmore
- Ardnaglass
- Ardnaree
- Ards
- Ards Beg
- Ardvally
- Ardy
- Arryheernabin
- Ashbrook
- Aughagault
- Aughagault Big
- Aughagault Little
- Aughkeely
- Aughnish Isle
- Aught Upper
- Aghabog
- Aghamackalinn
- Aghlattacru
- Aghlaverty
- Aghnafarcan
- Aghnagap
- Aghnamullen
- Alkill
- Allagesh
- Annaghroe Bridge
- Annagleve
- Annalittin
- Annaseeragh