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Trigger may refer to:

Notable animals and people

Animal

• Trigger (horse), owned by cowboy star Roy Rogers

Nickname

• Trigger Alpert (1916–2013), American jazz bassist
• "Trigger Mike" Coppola (1900–1966), American gangster

Surname

• Bruce Trigger (1937–2006), Canadian archaeologist
• Damon Trigger (born 1972), New Zealand born former English cricketer
• Hannah Trigger (born 1987), Australian snowboarder
• Ian Trigger (1938–2010), British actor

Technology

• Trigger (firearms), a mechanism that actuates the firing of firearms
• Database trigger, procedural code that is automatically executed in response to certain events
• Dead man's trigger, a safety device that activates safeguards if the operator is incapacitated
• Flip-flop (electronics), called a trigger circuit by IBM
• Image trigger, a device used in high speed cameras
• Schmitt trigger, an electronic circuit

Art, entertainment, and media

Fictional entities

• Trigger (Only Fools and Horses), a BBC sitcom character played by Roger Lloyd-Pack
• Trigger Argee, a fictional character in a series of science fiction short stories by James H. Schmitz
• Devil Trigger, a transformation ability found in the Devil May Cry series
• Trigger, a fictional horse in "Ernie (The Fastest Milkman in the West)"
• Trigger, the main player character in Ace Combat 7: Skies Unknown
• Trigger, the version of Popeye in the film The Story of Temple Drake (1933), a film adaptation of the William Faulkner novel Sanctuary

Film and television

• Trigger (2010 film), a Canadian film
• Trigger, Jr. (1950), a 1950 American film starring Roy Rogers
• "Triggers" (Supergirl), an episode of Supergirl
• Ultraman Trigger, a 2021 Japanese tokusatsu television series
• Trigger (2022 film), an Indoan Tamil-language action film

Literature

• The Trigger, a 1999 science fiction novel by Arthur C. Clarke and Michael P. Kube-McDowell
• Triggers (novel), a 2012 science fiction novel by Robert J. Sawyer

Music

• The Trigger (band), a Serbian hard rock/heavy metal band

Albums and EPs

• Trigger (EP), a 2003 EP by In Flames
• Trigger (album), a 2010 album by Porno Graffitti
• Trigger, an album by Jacob Quistgaard
• Trigger, an album by Soulside
• Trigger, an album by The Law

Instruments

• Trigger (drums), a transducer that allows a drum to control an electronic device
• Trigger (guitar), the Martin N-20 guitar played by Willie Nelson
• Trigger (trombone), a switch that enables a trombonist to switch from one set of tubing to another
• Trigger pad, a device used in electronic percussion

Songs

• "Trigger" (song), a 2019 song by Major Lazer and Khalid
• "Trigger", by Anne-Marie from Speak Your Mind
• "Trigger", by Converge from The Dusk in Us
• "Trigger", by In Flames from Reroute to Remain and its eponymous EP
• "Triggers", by Royal Blood from Back to the Water Below

Ships

• USS Trigger (SS-237), a submarine (laid down 1941, sunk 1945)
• USS Trigger (SS-564), a submarine (laid down 1949, decommissioned 1973)

Science

• Trigger (particle physics), hardware or software based device for the (online-)selection of specific event classes from large datasets
• Trigger, one event that makes a slope failure in landslides, in the causes of landslides
• Environmental trigger, a factor caused (or aided) by the environment
• ATLAS trigger system, in the ATLAS experiment

Biology

• Hibernation induction trigger, a blood substance that induces hibernation
• Seizure trigger, a factor that can cause a seizure
• Spawning triggers, environmental cues that cause fish to breed

Other uses

• Studio Trigger, a Japanese animation studio founded by Hiroyuki Imaishi
• Trigger, a verb conjugation specifying the subject's role in languages with Austronesian alignment
• Casus belli, an event triggering a war
• Trauma trigger, an event causing traumatic memories or feelings to resurface
• Trigger (game controller), a button on some game controllers

See also

• All pages with titles beginning with Trigger
• All pages with titles containing Trigger
• Triggered (disambiguation)
• Trigger warning (disambiguation)

• Disambiguation pages
• Disambiguation pages with surname-holder lists
• Ship disambiguation pages