Martin McDonagh (born 26 March 1970) is an English-born Irish playwright, filmmaker, and screenwriter.
McDonagh was born in Camberwell, London, England to Irish parents. His mother (originally from Killeenduff, Easky, County Sligo) and his father (originally from Lettermullen, Connemara, County Galway) later moved back to Galway, leaving Martin and his brother (screenwriter John Michael McDonagh) in London, where Martin began collecting unemployment benefits at age 16.
During visits to Galway in the summers, McDonagh became acquainted with the dialect of English spoken in western Ireland. He would later put an exaggerated and poeticized version of this dialect to work in his plays. His ironic combination of coarse country language, primal symbolism and black humour represents a peculiar fusion of the work of John Millington Synge with the modern drama of Harold Pinter, David Mamet and British television comedy.