Impulse or Impulsive may refer to:

• Impulse (physics), in mechanics, the change of momentum of an object; the integral of a force with respect to time
• Impulse noise (disambiguation)
• Specific impulse, the change in momentum per unit mass of propellant of a propulsion system
• Impulse function, a mathematical function of an infinitely high amplitude and infinitesimal duration
• Impulse response, a system's output when presented with the impulse function in Electrical Engineering
• Impulse (psychology), a wish or urge, particularly a sudden one
• Impulsion, a thrust of a horse

• Impulse (1954 film), a thriller film starring Arthur Kennedy
• Impulse (1974 film), a thriller film starring William Shatner
• Impulse (1984 film), a science fiction film starring Meg Tilly and Tim Matheson
• Impulse (1990 film), a thriller film starring Theresa Russell
• Impulse (2008 film), a thriller film starring Angus Macfadyen
• Impulse (2010 film), an apocalyptic thriller film starring Chris Masterson
• Impulse (TV series), a 2018 American television series that streams on YouTube Premium
• Impulse (2024 film), an upcoming American film directed by Patrick Flaherty
• "Impulse" (Star Trek: Enterprise), a third-season episode of Star Trek: Enterprise
  • Impulse drive, a fictional form of propulsion in Star Trek

• Impulse (German magazine), a German monthly magazine
• Impulse (Steven Gould novel), a 2013 novel by Steven Gould
• Impulse (Hopkins novel), a 2007 young adult verse novel by Ellen Hopkins
• Impulse (Psionex), a Marvel Comics character by Fabian Nicieza and Mark Bagley
• Impulse (DC Comics), an identity shared by three comic book superheroes published by DC Comics: Bart Allen, Kent Shakespeare, and Iris West
• Science Fantasy (magazine), which was published for a while under the titles Impulse and SF Impulse

• Impulse (band), Bulgarian hard rock group
• Impulse! Records, a jazz recording label
• Impulse (Buck Hill album), 1995
• Impulse Drum and Bugle Corps, an Open Class Drum and Bugle Corps from Buena Park, California
• Impulse (Erra album), 2011
• "Impulse", a song by Northlane from Node, 2015
• "Impulsive" (song), a 1990 song by Wilson Phillips

• Impulse Airlines, a former Australian airline
• Impulse (retailer), an entertainment retailer in the UK
• Isuzu Impulse, a small sporty three-door hatchback sold from 1981 through to 1992
• Impulse (body mist), a body spray made by Unilever
• Impulse (software), a digital distribution system for computer games
• Impulse purchase (also impulse buying), an unplanned decision to buy a product or service made just before the purchase

• Impulse 21, an American sailboat design
• Impulse (dinghy), a 4.0 m sports sailing dinghy
• Impulse (roller coaster), a roller coaster at Knoebels Amusement Resort in Pennsylvania
• Impulsivity
• Irresistible impulse, a legal defense that claims that an accused should not be held responsible for his or her actions