Slack (surname)

Slack is the surname of:

Politics, law and the military

 * Clayton K. Slack (1896–1976), United States Army private awarded the Medal of Honor
 * Doug Slack (born 1941), Australian former politician
 * George Slack (1874–1950), American politician
 * Granville Slack (1906–2003), British judge and politician
 * James Slack, British political advisor and journalist, former official spokesperson and Director of Communications for former prime minister Boris Johnson
 * James R. Slack (1818–1881), American state senator and Union Army brigadier general and brevet major general
 * Jerald D. Slack (born 1936), US Air National Guard major general
 * John Slack (cricketer) (1930–2012), English cricketer and judge
 * John Bamford Slack (1857–1909), British politician and Methodist lay preacher
 * John M. Slack Jr. (1915–1980), American politician
 * Leighton P. Slack (1867–1938), American state senator, lieutenant governor of Vermont and justice of the Vermont Supreme Court
 * Lemuel Ertus Slack (1874–1952), American state senator and lawyer
 * Thomas Kerr Slack (1875–1956), Canadian politician
 * Timothy Slack (1913–1976), American politician
 * William Y. Slack (1816–1862), American lawyer, politician and Confederate officer

Science

 * Adrian Slack (1933–2018), British landscape gardener, plantsman, author and authority on carnivorous plants
 * Francis G. Slack (1897–1985), American physicist
 * Harry Slack (1907–1982), British zoologist
 * Nancy Guttmann Slack (1930–2022), American plant ecologist, bryologist and historian of science
 * Roger Slack (1937–2016), British plant biologist and biochemist

Sports

 * Andrew Slack (born 1955), Australian rugby union player
 * Bill Slack (born 1933), Canadian retired baseball pitcher, manager and coach, member of the Canadian Baseball Hall of Fame
 * Bill Slack (footballer) (1906–1989), English footballer
 * Charlie Slack (1931–2020), American college basketball player
 * Henry James Slack (1818–1896), English journalist, liberal activist and science writer
 * Hiram Slack (Nottinghamshire cricketer) (1808–1853)
 * Hiram Slack (North of England cricketer) (1843–1918), nephew of the above
 * Jackie Slack (born 1959), British former footballer
 * John Slack (cricketer) (1930–2012), English cricketer and judge
 * Laurie Slack (1915–1991), Australian rules footballer
 * Mel Slack (1944–2016), English footballer
 * Pres Slack (1908–1993), American National Basketball Association player
 * Reggie Slack (born 1968), American former football quarterback
 * Rodney Slack (born 1940), English former football goalkeeper
 * Shanon Slack (born 1984), American mixed martial artist
 * Stuart Slack (1935–1998), racing cyclist, musician and folk songwriter from the Isle of Man
 * Trevor Slack (born 1962), English former footballer
 * Wilf Slack (1954–1989), English cricketer

Other

 * Agnes Elizabeth Slack (1858–1946), English Temperance advocate
 * Ben Slack, American actor, known for Bachelor Party
 * Eliza Fraser (c. 1798–1858), née Slack, English shipwreck victim who claimed to have been captured by Australian Aborigines
 * Freddie Slack (1910–1965), American swing and boogie-woogie pianist and bandleader
 * Paul Slack (born 1943), British historian
 * Samuel Slack (1757–1822), English bass singer
 * William Slack (surgeon) (1925–2019), dean of UCL Medical School and Serjeant Surgeon to Queen Elizabeth II