A chain reaction in chemistry or physics is a sequence of reactions where a reactive product or by-product causes additional reactions to take place.

Chain reaction or The Chain reaction may also refer to:

Media

  • Chain Reaction (game show), an American game show
  • Chain Reaction (radio), a BBC Radio 4 chat show
  • Chain Reaction (novel), by Simone Elkeles
  • "Chain Reaction" (Falcon Crest), a 1987 TV episode
  • "Chain Reaction" (Missing You), a 2025 TV episode
  • "Chain Reaction" (Stargate SG-1), a TV series episode
  • Chain Reaction, a 1995 video game in the Magical Drop series

Films

  • Chain Reaction (1996 film), starring Keanu Reeves, Rachel Weisz, Morgan Freeman, and Fred Ward
  • Chain Reaction (2017 film)
  • The Chain Reaction, 1980 Australian film starring Steve Bisley

Music

  • Chain Reaction (band)
  • Chain Reaction (record label)
  • Chain Reaction (music venue), defunct music venue in Anaheim, California

Albums

  • Chain Reaction (The Crusaders album), 1975
  • Chain Reaction (Luba album), 1980
  • Chain Reaction (John Farnham album), 1990
  • Chain Reaction (Cuban Link album), 2005
  • Chain Reaction (Distorted Harmony album), 2014
  • Chain Reaction: Yokohama Concert, Vol. 2, a 1977 concert recording by J. J. Johnson and Nat Adderley released in 2002

Songs

  • "Chain Reaction" (Diana Ross song), 1985
  • "Chain Reaction" (John Farnham song), 1990
  • "Chain Reaction", from the album The Best by Girls' Generation
  • "Chain Reaction", from the 1974 album Soon Over Babaluma by Can
  • "Chain Reaction", from the 1983 album Frontiers by Journey
  • "Chain Reaction", from the 1985 album Straight No Filter by Hank Mobley
  • "Chain Reaction", from the 1988 album Reach for the Sky by Ratt

Other uses

  • Chain Reaction (horse), a Canadian Thoroughbred
  • Chain Reaction (sculpture), a 1991 American peace monument created by Paul Conrad
  • Chain Reaction Cycles, a retail website focusing on selling cycling goods

See also

  • Nuclear chain reaction, a physical process
  • Chain Reactions (film), a 2024 documentary film
  • Chain reactions in living organisms
  • Chain of events