John McDonough
John McDonough may refer to:
- John McDonough (Savannah mayor), Mayor of Savannah, Georgia, 1891-1895
- John E. McDonough, member of the Massachusetts House of Representatives, 1985–1997
- John J. McDonough, Mayor of St. Paul, Minnesota, 1940-1948
- John P. McDonough (chaplain), Chief of Chaplains of the U.S. Air Force
- John T. McDonough, Secretary of State of New York 1899-1902, and Associate Justice of the Supreme Court of the Philippines 1903-1904
- John McDonough (sports executive), president of the Chicago Blackhawks
- Jack McDonough, Australian rules footballer