John Brennan

John Brennan may refer to:

Public officials

• Jack Brennan (born 1937), U.S. Marine officer and aide of Richard Nixon
• John O. Brennan (born 1955), CIA Director
• John P. Brennan (1864–1943), Democratic politician in the U.S. state of Ohio
• John Brennan Hussey (born 1934), former mayor of Shreveport, Louisiana
• John Joseph Brennan (1913–1976), Northern Ireland politician
• John Brennan (Irish senator) (1901–1977), Fianna Fáil politician

Sports

• John Brennan (Derry Gaelic footballer) (born 1942), Gaelic football manager and player
• John Brennan (Kerry Gaelic footballer), former Gaelic footballer
• Jack Brennan (footballer) (born 1892), for Bradford City and Manchester City
• John Brennan (American football) (1913–1982), American football player
• Jack Brennan (baseball) (1862–1914), American baseball catcher
• John Brennan (athlete) (1879–1964), American track and field athlete

Artists

• Johnny Brennan (born 1961), American actor, screenwriter and voice actor
• John Wolf Brennan (born 1954), Irish pianist, organist and composer

Other people

• John Brennan (Vanguard CEO) (born 1954), Chairman and CEO of The Vanguard Group
• John Calder Brennan (1908–1996), historian
• John Brennan (doctor) (c. 1768–1830), Irish doctor
• Sidney Czira (1889–1974), Irish journalist and revolutionary known by her pen name "John Brennan"

Fictional characters

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

See also

• John Brenan (disambiguation)