John Henry "Doc" Holliday (August 14, 1851 – November 8, 1887) was an American dentist, gambler and gunfighter of the American Old West, who is usually remembered for his friendship with Wyatt Earp and the Gunfight at the O.K. Corral.

"Doc" Holliday was born in Griffin, Georgia, to Henry Burroughs Holliday and Alice Jane Holliday (née McKey). His father served in both the Mexican-American War and the Civil War.

Holliday's mother died of tuberculosis on September 16, 1866, when he was 14 years old. Three months later, his father married Rachel Martin. Shortly after the marriage, the family moved to Valdosta, Georgia, where Holliday attended the Valdosta Institute. There he received a strong classical secondary education in rhetoric, grammar, mathematics, history, and languages — principally Latin, but also French and some ancient Greek.