M
- (An Cabhán) Moher
- (An Cabhán) McShane’s Bridge
- (An Cabhán) Magherintemple
- (County Monaghan) Magherashaghry
- (County Monaghan) Moylemuck
- (An Cabhán) Madabawn Bridge
- (County Monaghan) Moyle
- (County Monaghan) Magheracloone
- (County Monaghan) Moyles
- (County Monaghan) Magoney Bridge
- (County Monaghan) Monalia
- (County Monaghan) McNally’s Cross Roads
- (County Monaghan) Monneill
- (County Monaghan) Magherarny Cross Roads
- (County Monaghan) Moyles
- (County Monaghan) Mullaloughan
- (County Monaghan) Mullan
- (County Monaghan) Mullanacross
- (An Cabhán) Mully
- (An Cabhán) Moneensauran
- (An Cabhán) Moneynure
- (County Donegal) Meananeary
- (County Donegal) Malin
- (County Donegal) Meenlaragh
- (County Donegal) Mountcharles
- (County Donegal) Manorcunningham
- (County Donegal) Millford
- (An Cabhán) Mullagh
- (County Donegal) Muff
- (County Donegal) Moville