Irlanda

O

• (South Dublin) Oldbawn
• (County Galway) Oranmore
• Oileán Ciarraí
• (Kildare) Old Kilcullen
• (Meath) Oldcastle
• (Kildare) Oughterard
• (County Galway) Oughterard
• (Louth) Omeath
• (Fingal County) Oldtown
• (Limerick City and County Council) Old Kildimo
• (Clare) O’Briensbridge
• (Wexford) Oilgate
• (Limerick City and County Council) Oola
• (Wexford) Oulart
• (County Monaghan) Oram
• (County Leitrim) Orcusconny
• (Sligo) Ogham
• (Sligo) Oldrock
• (Sligo) Oghambaun
• (Wicklow) Oghi Upper
• (Wicklow) Oghil Lower
• (Mayo County) Oxford
• (Mayo County) Owenduff
• (County Galway) Ower
• (County Galway) Owenbristy
• (Clare) Oughtmama
• (An Cabhán) Oggal
• (County Leitrim) Oghill Cross Roads
• (Sligo) Owenbeg