Root of all evil or Root of evil may refer to:

• The Root of All Evil (album), a 2009 album by Swedish death metal band Arch Enemy
• The Root of All Evil (EP), Japanese work by all-female tribute band Iron Maidens
• "The Root of All Evil", part of the Twelve-step Suite and the first track of the album Octavarium, by Dream Theater
• "The Root of All Evil", a song by The Beautiful South
• "The Root of All Evil", a song by Snoop Doggy Dogg from Death Row: The Lost Sessions Vol. 1
• "Root of All Evil", a song by The Underachievers from their debut mixtape Indigoism
• "Money Is the Root of All Evil", a 1940s song by Whitney and Kramer, featured in the film High Time

• Root of Evil: The True Story of the Hodel Family and the Black Dahlia, a 2019 podcast about an unsolved murder
• The Root of Evil (film), 1912 silent short film directed by D. W. Griffith
• The Root of All Evil (1947 film), British drama starring Phyllis Calvert and Michael Rennie
• The Root of All Evil? (1968 TV series), British anthology TV series
• The Root of All Evil?, a 2006 UK television documentary, retitled The God Delusion discussing religious faith and starring Richard Dawkins
• Lewis Black's Root of All Evil, a television series aired on Comedy Central featuring comedian Lewis Black
• Born Rich (TV series), 2009 Hong Kong television drama known as Root of Evil in the original Cantonese
• "The Root of Evil" (Amphibia), an episode of Amphibia
• "The Root of All Evil" (Drop the Dead Donkey), a TV comedy episode

• The Root of Evil, 1911 novel by Thomas Dixon, Jr.
• "The Root of All Evil", a short story by Graham Greene
• The Root of All Evil, a User Friendly webcomic compilation book alluding to the Unix concept of the root user
• Roots of Evil (Ravenloft), 1993 video game released as part of the Advanced Dungeons & Dragons game
• The Root of All Evil (D&D Adventure), video game released as part of Dungeons & Dragons
• Death Jr. II: Root of Evil, 2008 action-adventure game for PlayStation Portable
• Good and evil, philosophical concept often involving the "root of all evil"
• Love of money, Christian biblical concept; according to 1 Timothy 6:10 "For the love of money is the root of all of evil"

• Route of All Evil (disambiguation)