The Enemy Within may refer to:
Books
The Enemy Within (Kennedy book), by Robert F. Kennedy, 1960
The Enemy Within (play), by Brian Friel, 1962
The Enemy Within, 1986 Volume 3 of L. Ron Hubbard's Mission Earth series
The Enemy Within (Milne book), by Seumas Milne, 1994
The Enemy Within (novel), by Christie Golden, 1994
The Enemy Within (Savage book), by Michael Savage, 2003
Hitman: Enemy Within, a 2007 novelization of the video game Hitman
The Enemy Within: Terror, Lies, and the Whitewashing of Omar Khadr by Ezra Levant, 2011 The Enemy Within (Rusch novel), by Kristine Kathryn Rusch, 2014 Enemies Within: Communists, the Cambridge Spies and the Making of Modern Britain by Richard Davenport-Hines, 2018 The Enemy Within: How the ANC lost the battle against corruption by Mpumelelo Mkhabela, 2022.
Film
The Enemy Within (1918 film), a 1918 Australian silent film
The Enemy Within (1994 film), an HBO thriller starring Forest Whitaker
Doctor Who: The Enemy Within (1996 film), FOX TV network telefilm
The Enemy Within (2013 film), a 2013 Greek film
Music
"The Enemy Within" (Rush song), 1984
Enemy Within (album), a 1986 album by Chris Spedding
"Enemy Within", a 1989 song by D.R.I. from Thrash Zone
"The Enemy Within", a 1996 song by Cherry Poppin' Daddies from Kids on the Street The Enemy Within, a 1998 album by Concord Dawn "Enemy Within", a 2001 song by Arch Enemy from Wages of Sin
Television
Doctor Who (film), a 1996 television movie based on the British science fiction series Doctor Who, alternatively titled Enemy Within The Enemy Within (TV series), a 2019 American television series
Episodes
"The Enemy Within" (Star Trek: The Original Series), 1966
"The Enemy Within" (MacGyver), 1986
"The Enemy Within" (Stargate SG-1), 1997
"Enemy Within" (Law & Order: Criminal Intent), 2001
"The Enemy Within" (NCIS), 2015
"The Enemy Within" (Under the Dome), 2015
Other
The Enemy Within Campaign, a 1986 series of adventures for Warhammer Fantasy Roleplay "The Enemy Within", a 2002 article by Gore Vidal about the 9/11 attacks "The Enemy Within", a 2010 article by Mark Bowden about the Conficker Worm "XCOM: Enemy Within", a 2013 expansion pack to the 2012 video game XCOM: Enemy Unknown "Batman: The Enemy Within", a 2017 point and click adventure video game developed by Telltale games
See also
"The Enemy Within the Gates", a 1968 radio and television episode of Dad's Army
The Enemy Inside (disambiguation) Fifth column Internal enemy