A knockout, in several sports, is a strike that renders an opponent unable to continue fighting.
Knockout may also refer to:
Sports and games Knock Out (Gottlieb pinball), a 1950 pinball machine Knock Out (kickboxing), a Japanese kickboxing promotion Knock Out (tabletop game), a tabletop game by the Milton Bradley Company Knockout (game), a basketball-related activity Knockout Cup (speedway), a British motorcycle speedway competition Knockout system, a tournament format divided into successive rounds Knockout tournament, a single-elimination tournament New England Knockouts, an American professional baseball team in Massachusetts Technical knockout (TKO), a knockout called by an official for safety reasons "TNA Knockout", a term used by Total Nonstop Action Wrestling to refer to its female talent Knockout Tour, a playable mode in the 2025 kart racing game Mario Kart World
Comics Knockout (1971 comic), either of two British comic books Knockout (DC Comics), a comic book character Knock Out (Transformers: Prime), a fictional robot supervillain turned superhero Knockout, a Femme Fatales comics character
Literature Knock-Out (novel), a Bulldog Drummond novel Knockout: Interviews with Doctors Who Are Curing Cancer – And How to Prevent Getting It in the First Place, a book by Suzanne Somers
Music Knockout Entertainment, an American record label Knock Out (Bonfire album) (1991), album by the hard rock band Bonfire "Knockout" (Triple 8 song) (2003), a song by the British pop/rock group Triple 8 "Twins (Knock Out)", a cover version by Super Junior "Knockout" (Lil Wayne song) (2010), song by Lil Wayne from his album Rebirth "K.O." (Pabllo Vittar song) (2017), song by Pabllo Vittar from her album Vai Passar Mal TKO (The Knock Out), 2018 album by Mya Knock Out!, a 1981 album by Toots and the Maytals "Knockout" (Bon Jovi song), song from 2016 album This House Is Not for Sale "Knock Out" (GD & TOP song), 2011 song by GD & TOP for their self-entitled album "Knockout" (2019), a song by Martin Tungevaag
Film, television, and stage The Knockout, a 1914 Keystone Studios film with Fatty Arbuckle and Charlie Chaplin. The Knockout (1923 film), a 1923 British silent sports film directed by Alexander Butler The Knockout (1925 film), a silent drama directed by Lambert Hillyer Knockout (1935 film), a German sports film Knockout (1941 film), a 1941 American drama directed by William Clemens Knock Out (1943 film), a 1943 Italian crime film directed by Carmine Gallone Knockout (1979), one of three Broadway plays starring Danny Aiello, all written by Louis La Russo II Knockout (1992 film), an Indian Tamil-language short film Knockout (2000 film), an American film about a female boxer Knock Out (2010 film), an Indian Hindi-language action-thriller film Knockout (2011 film) or Born to Fight, a Canadian film Haywire (2011 film) or Knockout, a 2011 American film Knockout (game show), a 1977–78 NBC series hosted by Arte Johnson Knockout (Indonesian TV series), a game show The Knockout (Chinese TV series), a 2023 Chinese TV series directed by Xu Jizhou
Information technology Knockout (web framework), a JavaScript library Image knockout, removing the background from an image
Material removal Knock-outs, partially punched enclosure openings for optional removal Knockout punch, a metalworking tool Knock-out pot, a vapor–liquid separator
Other uses Knockouts (salon), an American salon chain Knockout CP Freshmart (born 1990), Thai boxer and former Muay Thai fighter Knock-out option, a barrier option in financial markets Knockout game, a criminally violent activity Gene knockout, molecular biology technique Operation Knockout, a military campaign Reversing type, also known as knocking out, a method of typographic printing Touchless knockout, fraudulent practice and claims of knocking out an opponent without making physical contact
See also Incapacitation (disambiguation) Knockout gas Knockout drops Knocking one out, a euphemism KO (disambiguation) Knock Yourself Out (disambiguation) Double knockout (disambiguation) Knockout game (disambiguation)