Bill is a 1981 American made-for-television biographical drama film starring Mickey Rooney and Dennis Quaid based on the life of Bill Sackter. The film was broadcast on CBS on December 22, 1981.

A sequel, Bill: On His Own, was released in 1983. Writer/filmmaker Barry Morrow, portrayed in the film by Dennis Quaid, based the story on his life experiences with Sackter, and later became his legal guardian. Sackter, who did not have autism, would also serve as a partial inspiration for the character of Raymond Babbitt in Morrow's early draft screenplay for the 1988 film Rain Man.