- Mabestown
- Macetown
- Mackans
- Macoyle Lower
- Macoyle Upper
- Macreddin
- Macreddin East
- Macreddin West
- Maddenstown
- Maddenstown South
- Maddockstown
- Maganey
- Maganey Bridge
- Magherabeg
- Magheramore
- Maghereagh Cross
- Mahonstown
- Mainham
- Mallardstown
- Mangan
- Mangnacool Upper
- Mannion’s Cross Roads
- Mansfieldstown
- Maperath
- Marley
- Marley Bridge
- Marlfield
- Marsh
- Marsh South
- Marshalstown