True Grit is a 1968 novel by Charles Portis that was first published as a 1968 serial within The Saturday Evening Post. The novel is told from the perspective of a woman named Mattie Ross, who recounts the time when she was 14 and sought retribution for the murder of her father by a scoundrel, Tom Chaney. It is considered by some critics to be "one of the great American novels." True Grit is included in the Library of America of Portis' Collected Works.

Charles McColl Portis was an American author best known for his novels Norwood (1966) and the classic Western True Grit (1968). Both Norwood and True Grit were adapted as films, released in 1970 and 1969, respectively. True Grit also inspired a film sequel and a made-for-TV movie sequel. The second film adaptation of True Grit was released in 2010.