- Mullanaskeagh
- Mullanyduffy
- Munnagashel
- Murhaun
- Mace Lower
- Mace Middle
- Mace North
- Mace South
- Mace Upper
- Magheraboy
- Magheraboy
- Magheraboy
- Magherafadda
- Magheramore
- Magheranagay
- Mahanagh
- Mallaranny
- Mannin
- Manraghrory
- Manulla
- Maryland
- Massbrook Lower
- Massbrook South
- Massbrook Upper
- Maum
- Mayo
- Meelick
- Meelick
- Meelick
- Meellran