John Loyola Murray (born 10 May 1943) is a retired Irish judge who served as Chief Justice of Ireland from 2004 to 2011, a Judge of the Supreme Court from 1999 to 2015, a Judge of the European Court of Justice from 1992 to 1999 and as Attorney General of Ireland from August 1982 to December 1982 and 1987 to 1991.