The McCain family is a prominent American naval family. Its member include Admirals John S. McCain Sr. (1884–1945) and John S. McCain Jr. (1911–1981), who were the first father-and-son pair to achieve four-star admiral rank in the U.S. Navy, and John S. McCain III (1936–2018) who served in the Vietnam War and as a Congressman and United States Senator from Arizona.