M
- (Louth) Martin’s Cross
- (Louth) Mellifont
- (Westmeath) Mount Temple
- (Westmeath) Mill Land
- (Westmeath) Millerstown
- (Westmeath) Mucklin
- (Westmeath) Mulchanstown
- (Westmeath) Mooretown
- (Westmeath) Mullaghcroy
- (Westmeath) Mabestown
- (Westmeath) Martinstown
- (Westmeath) Mulliganstown
- (Westmeath) Moyleroe Big
- (Westmeath) Moyleroe Little
- (Westmeath) Mitchelstown
- (Westmeath) Moygrehan Lower
- (Westmeath) Moygrehan Upper
- (Meath) Moat
- (Meath) Mullagh
- (Meath) Milltown
- (Meath) Moylagh
- (Meath) Murrens
- (Meath) Monennican
- (Meath) Maperath
- (Meath) Martinstown
- (Meath) Meenlagh
- (Meath) Muchwood
- (Meath) Moyfeagher
- (Meath) Monktown
- (Meath) Moat Town