Jack White (born John Anthony Gillis; July 9, 1975), often credited as Jack White III, is an American musician, record producer and occasional actor, best known as the guitarist and lead vocalist for The White Stripes.

During the 1990s, White was a part-time musician in various underground bands in Detroit, while working by day as an upholsterer. White formed The White Stripes in 1997 with his now ex-wife Meg White. The band went on to have a string of critically acclaimed albums, with their third, White Blood Cells, catapulting them to international stardom. Jack was ranked #17 on Rolling Stone magazine's list of "The 100 Greatest Guitarists of All Time". White's popular and critical success with The White Stripes enabled him to collaborate as a solo artist with other renowned musicians, such as Beck, The Rolling Stones, Jeff Beck, Bob Dylan and Loretta Lynn, whose 2004 album Van Lear Rose he produced and performed on. In 2005, White became a founding member of the rock band The Raconteurs. In 2009, he became a founding member of his third group, The Dead Weather.

Of Scottish-Canadian and Polish descent, White, the youngest of ten children (seven sons, three daughters), was born in Detroit, Michigan, the son of Teresa and Gorman Gillis. His father and mother worked for the Archdiocese of Detroit, as the maintenance man and the Cardinal's secretary, respectively. Jack eventually became an altar boy, which landed him an uncredited role in the 1987 movie The Rosary Murders, filmed mainly at Holy Redeemer parish in southwest Detroit. As a child he was a fan of classical music.