Backlash may refer to:

• Backlash: The Undeclared War Against American Women, a 1991 book by Susan Faludi
• Backlash (Star Wars novel), a 2010 novel by Aaron Allston
• Backlash (Marc Slayton), a comic book character from Wildstorm Productions
• Backlash (alternative title to: A Plague on Both Your Causes), a novel by John Brunner

• Backlash (Bad English album), 1991
• Backlash (Freddie Hubbard album), 1967
• Backlash, an album by Nina Simone
• "Backlash", a 1991 song by Joan Jett from the album Notorious
• "Backlash" (song), by 10 Years

• Backlash (1947 film), an American film noir starring Jean Rogers
• Backlash (1956 film), an American Western starring Richard Widmark
• Backlash (1986 film), an Australian drama directed by Bill Bennett
• Backlash (1994 film), an American film starring Sunny Doench

• WWE Backlash, an annual World Wrestling Entertainment Pay-per-view event
• Backlash, a Demolition Vehicle in the video game Blast Corps

• Backlash (engineering), clearance between mating components
• Backlash (sociology), a strong adverse reaction to an idea, action, or object
• Backlash (pressure group), a UK group opposing the 2008 law criminalising possession of "extreme pornography"

• Backflash (disambiguation)
• Backslash, a typographical mark
• Blacklash, or Whiplash, a Marvel Comics character