Jack

• Jack, Alabama, US, an unincorporated community
• Jack, Missouri, US, an unincorporated community
• Jack County, Texas, a county in Texas

• Jack (given name), a male given name, including a list of people and fictional characters with the name
• Jack (surname), including a list of people with the surname
• Jack (Tekken), multiple fictional characters in the fighting game series Tekken
• Jack the Ripper, an unidentified British serial killer active in 1888
• Wolfman Jack (1938–1995), a stage name of American disk jockey Robert Weston Smith
• New Jack, a stage name of Jerome Young (1963-2021), an American professional wrestler
• Spring-heeled Jack, a creature in Victorian-era English folklore
• Jack (hero), an archetypal Cornish and English hero and stock character

Fish

• Carangidae generally, including:
  • Almaco jack
  • Amberjack
  • Bar jack
  • Black jack (fish)
  • Crevalle jack
  • Giant trevally or ronin jack
  • Jack mackerel
  • Leather jack
  • Yellow jack
• Coho salmon, males called "jacks"
• Esox (northern pike), young called "jacks"
• "Jackfish" or "jack", a western Canadian name for northern pike

Mammals

• Jack (baboon), a baboon who was the assistant to a disabled railway signalman in South Africa
• Jack (cat), a Norwegian forest cat who was lost by American Airlines baggage handlers
• Jack or jackass, a male donkey (Equus africanus)

Plants

• Jack (tree) (Mangifera caesia), a relative of the mango
• Jack pine (Pinus banksiana), a North American conifer
• Jackfruit (Artocarpus heterophyllus)

Films

• Jack (1925 film), a French silent film directed by Robert Saidreau
• Jack (1996 film), a film starring Robin Williams
• Jack (2004 film), a film starring Anton Yelchin and Stockard Channing
• Jack (2013 film), a television film starring Rick Roberts and Sook-Yin Lee
• Jack (2014 film), a German film
• Jack (2015 film), an Austrian film

Games

• Jack (playing card), the lowest-ranking face card in some types of deck
• Jack, a target ball used in games such as bowls
• Jack, a playing piece used in the children's game called jacks

Literature

• Jack (Homes novel), a 1990 novel by A. M. Homes
• Jack (Lundell novel), a 1976 novel by Ulf Lundell
• Jack (Robinson novel), a 2020 novel by Marilynne Robinson

Periodicals

• Jack (Italian magazine), an Italian-language technology magazine
• Jack (magazine), an English-language British lad mag

Music

Artists and groups

• Jack (band), a British independent pop group signed to the Too Pure label
• Jack & Jack, an American an American pop-rap duo
• Jack (Vietnamese singer) (born 1997), a Vietnamese pop star

Albums

• Jack (album), a 2010 studio album by John Farnham
• Jack (EP), a 1991 EP by Moose
• Jack, a 1984 album by Bone Orchard
• J.A.C.K., a 2013 studio album by Forever the Sickest Kids

Songs

• "Jack" (song), a 2013 song by Breach
• "Jack" (1980), a B-side song to "Tell The Children" by Sham 69 on the album Kings & Queens
• "Jack" (1984), a song and single by Bone Orchard
• "Jack" (2001), a song by Iced Earth from their album Horror Show (2001)
• "Jack" (1983), a song and single by Machinations (band)
• "Jack" (1983), a song and single by Mighty Gabby
• "Jack", song by Pixie Lott from the Turn It Up (2009) album
• "The Jack", a song by AC/DC originally on the album T.N.T. (1975)

Television

• Jack (TV series), a 3D-animated series broadcast by TVOntario
• Jack TV, a general entertainment channel in the Philippines (cable)

Other uses in arts, entertainment, and media

• Jack FM, a radio format and brand

• Jack (flag), a national maritime flag flown by warships, e.g.,
  • Union Jack
• Jack, the Allied code-name of the Japanese Mitsubishi J2M fighter of World War II

Computing and software

• Jack (CAD software), a 3-D ergonomics and human factors CAD package
• Jack (human modeling), a human modeling and simulation system
• JACK Audio Connection Kit, a computer sound server
• JACK Intelligent Agents, a multi-agent platform written in Java

Electrical interfaces

• Electrical connector, or "wall jack", a socket (often panel-mounted) intended to accept a plug
• Phone connector (audio), commonly known as "audio jack", or "jack plug", or "phone jack"
• Registered jack, a standardized telecommunication network interface for connecting voice and data equipment

Mechanical tools

• Jack (device), a device used to lift heavy objects
  • Jackscrew, a device used to support heavy objects at various heights
  • Pallet jack, a device with two forks used to lift and move pallets; the powered version is known as a forklift
  • Strand jack, used in construction and engineering, and is capable of lifting hundreds of tonnes
• Boot jack, a device for removing boots
• Jack plane, a tool for smoothing wood
• Roasting jack, a device for turning a spit

• Jack Box, the mascot of Jack in the Box restaurants
• Cracker Jack and Cracker Jack'D, snack foods with the fictional Sailor Jack as a mascot
• Jack Daniel's, a Tennessee whiskey distillery, whose product is sometimes referred to as "Jack"
• Jack of plate or jack, a type of armor
• Jack's (store), a defunct British discount supermarket chain owned by Tesco
• Monterey Jack, a variety of cheese
• Quarter-jack or jack, an animated figure which strikes the bell of a clock
• Yukon Jack (liqueur), a Canadian whisky with honey
• Jack Tar or "jack", a term for a sailor

• All pages with titles beginning with Jack
• All pages with titles containing Jack
• Hijacking (disambiguation)
• Jacking, a dance technique and music form that first became popular in the late 1980s
• Jacks (disambiguation)