Philip Alexander "Alex" Gibney (23 de outubro de 1953) é um diretor e produtor norte-americano. Ele ganhou o Oscar de melhor documentário de longa-metragem para Taxi to the Dark Side.
The Fifties (1997), mini-série de televisão
AFI's 100 Years... 100 Movies: Love Crazy (1998)
The Sexual Century: Sexual Explorers (1999)
The Sexual Century: The Sexual Revolution (1999)
Jimi Hendrix and the Blues (2001)
Enron: The Smartest Guys in the Room (2005)
3 Doors Down: Away from the Sun, Live from Houston, Texas (2005)
Time Piece (segmento "Empire of the Pushcarts") (2006)
The Human Behavior Experiments (2006)
Gonzo: The Life and Work of Dr. Hunter S. Thomps]] (2008)
Casino Jack and the United States of Money (2010)
Freakonomics (segmenot Pure Corruption) (2010)
Client 9: The Rise and Fall of Eliot Spitzer (2010)
Magic Trip: Ken Kesey's Search for a Kool Place (2011)
Mea Maxima Culpa: Silence in the House of God (2012)
Park Avenue: Money, Power and the American Dream (2012)
We Steal Secrets: The Story of WikiLeaks (2013)