Jack Thomas

Jack Thomas may refer to:
 * Jack Thomas (academic), president of Western Illinois University
 * Jack Thomas (bishop) (1908–1995), Welsh Anglican bishop
 * Jack Thomas (footballer, born 1996), English footballer
 * Jack Thomas (footballer, born 1890) (1890–1947), English footballer
 * Jack Thomas (swimmer) (born 1995), British swimmer
 * Jack W. Thomas (born 1930), American screenwriter and novelist
 * Jack Ward Thomas (1934–2016), chief of the U.S. Forest Service
 * Joseph T. Thomas (born 1973), known as Jack, Australian citizen whose conviction for receiving funds from Al-Qaeda was overturned on appeal
 * John Thomas (lacrosse) (born 1952), known as Jack, American lacrosse player
 * A. Jack Thomas, Baltimore-area conductor
 * Jack Thomas (speedway rider) (born 1999), British speedway rider