All cities and villages in Ireland
- Monavarnoge
- Moneen
- Moneycashen
- Moneyduff
- Moneygall
- Monivea
- Monkstown
- Monkstown
- Monroe
- Mooncoin
- Moone
- Moor
- Moore
- Mooretown
- Mornington
- Moroe
- Mothel
- Mountain Lodge
- Mount Bellew Bridge
- Mount Bolton
- Mountbolus
- Mountcharles
- Mountcollins
- Mount Druid
- Mount George
- Mount Keeffe
- Mountmellick
- Mount Neill
- Mount Nugent
- Mount Pleasant
- Mountrath
- Mountshannon
- Mount Talbot
- Mount Uniacke
- Moveen
- Moville
- Moy
- Moyagher
- Moyard
- Moyascragh
- Moyasta
- Moy Bridge
- Moycullen
- Moydow
- Moyhora
- Moylaw
- Moylough
- Moynalty
- Moyne
- Moyne
- Moyne
- Moyne Cross Roads
- Moyny
- Moyny
- Moyra
- Moyvally
- Moyvore
- Moyvoughly
- Muccurragh
- Muff
- Muingvautia
- Muingwee
- Mullabryan
- Mullacrew
- Mullagh
- Mullagh
- Mullagh
- Mullagh
- Mullaghgarve
- Mullaghmore
- Mullaghoran
- Mullanalaghta
- Mullawornia
- Mullinahone
- Mullinavat
- An Muileann gCearr
- Mullycagh
- Multyfarnham
- Mungret
- Murntown
- Murragh
- Murrisk
- Murroogh
- Mylerstown
- Myshall
- Naas
- Nad
- Nags Head
- Naran
- Narraghmore
- Naul
- Navan
- Neale
- Nealstown
- Nenagh
- Nethertown
- Newbawn
- Newberry
- New Birmingham
- Newbliss
- Newbridge
- Droichead Nua
- Newbridge
- Newcastle
- Newcastle West
- Newcastle
- Newcastle
- Newcastle
- Newcestown
- Newinn
- New Inn
- New Inn
- Newmarket
- Newmarket
- Newmarket on Fergus
- Newmills
- Newmills
- Newport
- Newport
- New Quay
- New Ross
- Newtown
- Newtown
- Newtownshandrum
- Newtown
- Newtown
- Newtown
- Newtown
- Newtown
- New Town
- Newtown
- New Town
- Newtownburke
- Newtown Cunningham
- Newtown Daly
- Newtown Forbes
- Newtownfortescue
- Newtown Gore
- Newtownlynch
- Newtown Monasterboice
- Newtown Mount Kennedy
- Newtown Sandes
- New Twopothouse Village
- Nicker
- Ninemilehouse
- Nobber
- Nohaval
- Northgrove
- Northlands
- North Ring
- Noughaval
- Nurney
- Nurney
- Nursetown
- O’Briensbridge
- O’Callaghansmills
- Oghil
- Oilgate
- Oldbridge
- Oldcastle
- Oldcastle
- Oldchapel
- Oldcourt
- Oldcourt
- Old Kilcullen
- Oldleighlin
- Old Ross
- Old Town
- Oldtown
- Old Town
- Old Twopothouse Cross Roads
- Omeath
- Onaght
- Oola
- Oran
- Oranmore
- Oristown
- Ormond View
- Oughter
- Oughterard
- Oulart
- Ourtnagapple
- Ovens
- Avoca
- Owenduff
- Paddock
- Painestown
- Palatine
- Pallas
- Pallas Grean
- Pallasgreen
- Pallaskenry
- Palmerston
- Palmerstown Bridge
- Park
- Partry
- Passage East
- Passage West
- Pass of Kilbride
- Paulsworth
- Pedlars Cross Roads
- Petersville
- Peterswell
- Pettigoe
- Daingean
- Pierpoint
- The Pike
- Pilltown
- Piltown
- Pluck
- Pollboy
- Pollremon
- Port
- Portacloy
- Portahack
- Portaleen
- Portarlington
- Portlaoise
- Portlaw
- Portmagee
- Portmarnock
- Portnalong
- Portnoo
- Portrinard
- Portroe
- Portsalon
- Portumna
- Porturlin
- Poulacapple
- Poulnalour
- Poulnamucky
- Powellsborough Cross Roads
- Powers Cross
- Powerstown
- Prosperous
- Puckaun
- Pulleen
- Quakers Cross Roads
- Queensborough
- Quigley’s Point
- Quignalahy
- Quilty
- Quin
- The Rag
- Raharney
- Raheen
- Raheen
- Raheen
- Raheens
- Raheny