Moira (from Irish: Maigh Rath, meaning "plain of the streams or wheels") is a village and civil parish in County Down, Northern Ireland. It is in the northwest of the county, near the borders with counties Antrim and Armagh. The M1 motorway and Belfast–Dublin railway line are nearby. The settlement has existed since time immemorial. In a 2008 estimate the Northern Ireland Statistics and Research Agency approximated the population of Moira to be 4,221.