The surname Jack is of early medieval English origin and is derived from the given name Jack.
Notable persons with this surname include:
Aaron Jack, member of the Kansas House of Representatives
Adrian Jack (born 1943), British composer
Andrew Jack (born 1964), British dialect coach
Andy Jack (born 1923), English former footballer
Annie Jack (née Hayr) (1839–1912), Canadian garden writer
Archibald Jack (1874–1939), New Zealand-born railway engineer and British Army officer
Badou Jack (born 1983), Swedish-Gambian boxer
Barnaby Jack (1977–2013) New Zealander hacker, programmer and computer security expert
Bob Jack (1876–1943), Scottish football player and manager
Caroline Jack (born 1978), South African field hockey player
Chris Jack (born 1978), New Zealand rugby union footballer
Cordel Jack (born 1982), West Indies cricketer
David Jack (disambiguation)
Donald Jack (1924–2003), Canadian novelist and playwright
Elaine L. Jack (born 1928), president of the Relief Society of the LDS Church
Felisha Legette-Jack (born 1966), American university basketball coach
Fritz Jack (1879–1966), German fencer
Galactus Jack, real name Ben Jack (born 1982), British disc-jockey and producer
Garry Jack (born 1961), Australian former rugby league footballer and coach
George Jack (1855–1931), British Arts and Crafts designer and architect
George W. Jack (1875–1924), United States district judge
Gilbert Jack (Jachaeus, Jacchaeus) (c.1578–1628), Scottish philosopher
Gullah Jack (died 1822), Angolan-American conjurer and slave
Henry Jack (1917–1978), Scottish mathematician
Holly Jack, Scottish actress and director
Homer A. Jack (1916–1993), American Unitarian Universalist clergyman pacifist and social activist
Hugh Jack (born 1929), Australian former long jumper
Hulan Jack (1905–1986), Saint Lucian-born New York politician
Ian Jack (born 1945), Scottish journalist
Isaac Allen Jack (1843–1903), Canadian lawyer and author
James Jack (disambiguation)
Janis Graham Jack (born 1946), United States federal judge
Jarrett Jack (born 1983), American professional basketball player
Jill Jack, American singer-songwriter
Jimmy Jack, Australian screenwriter, film director, actor and producer
John Jack (1932–1988), Scottish footballer
Keith Jack (born 1988), British actor and singer
Kelvin Jack (born 1976), Trinidadian football goalkeeper
Kema Jack (born 1982), international footballer for Papua New Guinea
Kenneth Jack (1924–2006), Australian watercolour artist
Kieren Jack (born 1987), professional Australian rules footballer
Lowell Jack (1925–2010), historian, city commissioner, mayor and president of chamber of commerce in Manhattan, Kansas
Sir Malcolm Jack (born 1946), Clerk of the House of Commons of the United Kingdom
Mathias Jack (born 1969), German retired footballer
Michael Jack (born 1946), English politician
Myles Jack (born 1995), American football linebacker
Nawal El Jack (born 1988), Sudanese sprinter
Patrick Churchill Jack (1808–1844), leader in the Republic of Texas
Richard Jack (1866–1952), Canadian painter
Richard C. Jack, British animator and filmmaker
Robert Logan Jack (1845–1921), Australian geologist
Rodney Jack (born 1972), professional football player from Saint Vincent and the Grenadines
Rollo Jack (1902–1994), English professional footballer
Ross Jack (born 1959), Scottish football manager
Sir Roy Jack (1914–1977), New Zealand politician
Ryan Jack (born 1992), Scottish professional footballer
Sandy Jack (1922–2002), Scottish campaigner and consumer champion
Shervon Jack (born 1986), Saint Lucian international football player
Simon Jack (born 1971), British business journalist
Steven Jack (born 1970), South African former cricketer
Stuart Jack (born 1949), retired British diplomat, Governor of the Cayman Islands 2005–2009
Summers Melville Jack (1852–1945), member of the U.S. House of Representatives
Thomas Jack (1881–1961), British track and field athlete
Thomas Jack (born 1993), Australian DJ
Walter Jack (1874–1936), Scottish footballer
William Jack (disambiguation)
