The name Jack is a pet name for John, or to a lesser extent Jacob, commonly so in the Northeastern United States and in the United Kingdom. Jack may also refer to:

Michael Joseph Jackson (August 29, 1958 – June 25, 2009) was an American recording artist, entertainer, and businessman. Often referred to as the King of Pop, or by his initials MJ, Jackson is recognized as the most successful entertainer of all time by Guinness World Records. His contribution to music, dance, and fashion, along with a much-publicized personal life, made him a global figure in popular culture for over four decades. The seventh child of the Jackson family, he debuted on the professional music scene along with his brothers as a member of The Jackson 5 in 1964, and began his solo career in 1971.

In the early 1980s, Jackson became a dominant figure in popular music. The music videos for his songs, including those of "Beat It", "Billie Jean", and "Thriller", were credited with transforming the medium into an art form and a promotional tool, and the popularity of these videos helped to bring the relatively new television channel MTV to fame. Videos such as "Black or White" and "Scream" made him a staple on MTV in the 1990s. Through stage performances and music videos, Jackson popularized a number of complicated dance techniques, such as the robot and the moonwalk, to which he gave the name. His distinctive musical sound and vocal style influenced numerous hip hop, post-disco, contemporary R&B, pop and rock artists.

Dwayne West (born 8 June 1980) is a former rugby league footballer of the 2000s. He competed in the Super League competition, featuring as a winger. He started his career at Wigan Warriors, debuting in Super League 1999 but was signed by St Helens in June 2000. He stayed at St Helens until being signed by Hull. However, on his debut for Hull he picked up a serious knee injury. He is the son of former coach Graeme West.

He is most remembered for his time at St Helens for his role in arguably the most famous try in Super League history - Chris Joynt's try in the Qualifying Playoff at Knowsley Road vs. Bradford Bulls on 22 September 2000. With the Bulls leading 11-10, the clock was up and there was one last play for St Helens to score, if the ball went dead the game would finish. After the ball had been passed back and forth on the right hand side by the St Helens players, there was no way through. Sean Long switched the play left where he found West. He ran forward and beat two Bulls players before passing the ball inside to Joynt to score a dramatic try at the death. The try soon became known as the 'Wide to West' try, named after the memorable commentary by Eddie Hemmings:

Tammy Jones (born Helen Wyn Jones, 12 March 1944), is a singer from Bangor, Gwynedd, North Wales.

Jones began singing at an early age, and was soon established as a regular on both radio and television in her native Wales.

She starred in her own series on Welsh TV simply called, Tammy. Guest spots followed on English television with Benny Hill, Tom Jones, The Bachelors, Dick Emery and Morecambe and Wise, as well as appearances at the London Palladium and the Royal Variety Performance in front of HRH The Princess Anne. Cabaret appearances were both national and international with visits to Poland, Israel, Zimbabwe, America, Canada, Africa, Europe, Australia, New Zealand and Argentina.

In the 1960s, Jones became a top rated cabaret artiste performing ballads such as "No Regrets", "My Way" and "The Day That the Rains Came Down". With a voice trained for opera at the Guildhall School of Music, London, this was her forte for many years.

She was ‘discovered’ through the popular ITV talent show, Opportunity Knocks, which she won for six consecutive weeks in 1975. Her participation resulted in the most recorded votes ever on the show.^{[citation needed]} This produced her biggest hit, "Let Me Try Again", which reached #5 in the UK Singles Chart. In 1975, Jones was the best selling UK female artist of the year based on her international record sales.

Garland Robinette (born in Boutte, Louisiana ca. 1943) is a journalist in the New Orleans area. He currently is host of "The Think Tank" on New Orleans radio station WWL (AM).

Robinette was a news anchor and investigative reporter on New Orleans TV station WWL-TV Channel 4 for twenty years (1970 until August 8, 1990). After leaving the TV station, Robinette served as head of public relations for Freeport-McMoRan in New Orleans before starting his own firm. He returned to the media in 2005 on WWL (AM) as a fill-in for David Tyree, a popular host stricken with cancer. The position became permanent when Tyree succumbed several weeks after Hurricane Katrina.

Robinette came to national attention with Hurricane Katrina in 2005. As the storm made landfall radio station WWL was the only broadcast media in New Orleans able to continue operating during the disaster. Robinette was broadcasting from a hastily thrown together set-up in a closet of the WWL studios after the high rise building windows blew out. In the days between the time when the hurricane hit New Orleans and when outside help arrived, Robinette's broadcasts were an important information source for those able to hear radio broadcasts in the Greater New Orleans area. On September 2, 2005, Robinette conducted the famous interview with Mayor Ray Nagin where the mayor urged those in the Federal Government who had been promising but not delivering aid to "get off your asses".