John McCain (1936–2018) was a United States Senator and the 2008 Republican presidential candidate.
John McCain may also refer to:
People Senator's family
John McCain (1851–1934), farmer, father of John S. McCain Sr., and great-grandfather of the senator; See Early life and military career of John McCain John S. McCain Sr. (1884–1945), US Navy four-star admiral, father of John S. McCain Jr., and grandfather of the senator John S. McCain Jr. (1911–1981), US Navy four-star admiral, son of John S. McCain Sr., and father of the senator
Other persons Jonathan McKain (born 1982), Australian association football player John W. McCain, CEO of Keane
Ships USS John S. McCain (DL-3), a Mitscher-class guided-missile destroyer-leader, later re-designated as the destroyer DDG-36, commissioned in 1953 and decommissioned in 1978 USS John S. McCain (DDG-56), an Arleigh-Burke-class guided-missile destroyer commissioned in 1994
See also John McClane, fictional hero of the Die Hard action film series, played by Bruce Willis John S. McCain (disambiguation) USS John McCain, a list of ships of the US Navy John Cain (disambiguation)