Jack Crawford (22 March 1775 in the east end of Sunderland, England - 10 November 1831) was a sailor of the Royal Navy known as the "Hero of Camperdown."
John Herbert ("Jack") Crawford (March 22, 1908 - September 10, 1991) was a great Australian tennis player of the 1930s. He was the World No. 1 player for 1933.
Jack Crawford is a supporting character appearing in the Hannibal Lecter series of books by Thomas Harris, in which he is in charge of the Behavioral Science Unit of the FBI in Quantico, Virginia. He is modeled after John E. Douglas, who held the same position.