- Moyne
- Moyoran
- Mullaghnashee
- Mullaun
- Mullen
- Maghera
- Maghera
- Magheraboy
- Magheraghanrush
- Magheralackagh
- Magheranore
- Maguins Island
- Mahanagh
- Masreagh
- Masshill
- Maydough
- Meelick Park
- Meenaglagh
- Metal Bridge
- Milk Haven
- Milltown
- Monasteradon
- Monasterredan
- Moneygold
- Moneylahan
- Montiagh
- Mount Town
- Mountirvine
- Moygara
- Moylough