John Brennan

John Brennan may refer to:

People

• John Brennan (athlete) (1879–1964)
• John Brennan (Irish senator) (1901–1977)
• John Calder Brennan (1908–1996), historian
• John Brennan (American football) (1913-1982), American football player
• John Joseph Brennan (1913–1976), Northern Ireland politician
• Jack Brennan (born 1937), U.S. Marine officer and aide of Richard Nixon
• John Brennan (Gaelic footballer) (born 1937), Derry football manager
• John O. Brennan (born 1955), Deputy National Security Advisor and Counterterrorism Czar to U.S. President Obama
• John Brennan (Vanguard CEO) (born 1954), Chairman and CEO of The Vanguard Group
• John G. Brennan (born 1961), American actor, screenwriter and voice actor

May also refer to

• John Brennan Hussey (born 1934), former mayor of Shreveport, Louisiana

Fictional characters

• John Brennan, a character in the play Coyote on a Fence

See also

• John Brenan (disambiguation)