- Mooncoin
- Moonveen
- Mount Garrett Bridge
- Mount Ida
- Mount Pleasant
- Moyhora
- Muckalee
- Mullenbeg
- Mullenbeg Cross Roads
- Mullennakill
- Mullinavat
- Munginacody
- Maganey Bridge
- Mayo
- Meelick
- Modubeagh
- Monavea
- Monnagh
- Moore’s Cross Roads
- Moscow
- Moyadd Bridge
- Mullaghanard Cross Roads
- Mungan
- Maghereagh Cross
- Mansfieldstown
- Marsh South
- Martin’s Cross
- Mellifont
- Milltown
- Moneymore