Martin Faranan McDonagh (/məkˈdɒnə/; born 26 March 1970) is a British-Irish playwright and filmmaker. He is known for his absurdist dark humour, which often challenges the modern theatre aesthetic. He has won numerous accolades, including an Academy Award, six BAFTA Awards, two Golden Globe Awards, and three Olivier Awards, in addition to nominations for five Tony Awards.

His plays, many of which have been produced on the West End and Broadway, include The Beauty Queen of Leenane, The Cripple of Inishmaan (both 1996), The Lonesome West (1997), The Lieutenant of Inishmore (2001), The Pillowman (2003), A Behanding in Spokane (2010), and Hangmen (2015).