The Whole Truth may refer to:

• The Whole Truth (1923 film), a film starring Stan Laurel
• The Whole Truth (1958 film), a British film directed by John Guillermin
• The Whole Truth (2009 film), an American comedy starring Eric Roberts, Elisabeth Röhm, and Sean Patrick Flanery
• The Whole Truth (2016 film), an American thriller film starring Keanu Reeves
• The Whole Truth (2021 film), a Thai mystery thriller film
• The Whole Truth (TV series), a 2010 American legal drama series
• "The Whole Truth" (The Twilight Zone), an episode
• "The Whole Truth" (Lost), an episode
• "The Whole Truth" (Medium), an episode

• The Whole Truth (play), a 1956 play by Philip Mackie, basis for the 1958 film
• The Whole Truth (Point of Grace album), 1995
• The Whole Truth (Da' T.R.U.T.H. album), 2011
• The Whole Truth (novel), a novel by David Baldacci
• The Whole Truth, a novel by Janice Kaplan

• Sworn testimony