John McDonough may refer to:John McDonough (businessman) (1951–2023), British businessman, CEO of Carillion John McDonough (1849–1926), American politician, mayor of Savannah, Georgia, 1891–1895 John McDonough, president of the Chicago Blackhawks John McDonough (1916–1978), American pro football referee John McDonough (piper), Irish piper John E. McDonough, member of the Massachusetts House of Representatives, 1985–1997 John J. McDonough (mayor) (1895–1962), American politician, mayor of St. Paul, Minnesota, 1940–1948 John J. McDonough, member of the Boston School Committee John P. McDonough (politician), American politician from Maryland John P. McDonough (chaplain) (1928–2021), Chief of Chaplains of the U.S. Air Force John T. McDonough (1843–1917), American politician, Secretary of State of New York 1899–1902, and Associate Justice of the Supreme Court of the Philippines, 1903–1904 Jack McDonough (1879–1955), Australian rules footballer