Jack Brennan (disambiguation)

Jack Brennan (1937–2023) was a United States Marine Corps officer and political aide.

Jack Brennan may also refer to:

Jack Brennan (baseball) (1862–1914), American baseball catcher Jack Brennan (footballer, born 1892) (1892–1942), English footballer Jack Brennan (Australian footballer) (1897–1987), Australian rules footballer Jack Brennan (rugby league) (1935/1936–2025), English rugby league footballer Jack Brennan (General Hospital), a fictional character

See also John Brennan (disambiguation)