Mary O'Rourke (née Lenihan; born 31 May 1937) is a former Irish Fianna Fáil politician who served as Leader of Seanad Éireann and Leader of Fianna Fáil in the Seanad from 2002 to 2007, Deputy Leader of Fianna Fáil from 1994 to 2002, Minister for Public Enterprise from 1997 to 2002, Minister for Health and Children from 1991 to 1992 and Minister for Education from 1987 to 1991. She served as a Teachta Dála (TD) from 1982 to 2002 and 2007 to 2011. She served as a Senator from 1981 to 1982 for the Cultural and Educational Panel and 2002 to 2007, upon being Nominated by the Taoiseach.