Heidi's Song is a 1982 American animated musical film produced by Hanna-Barbera Productions and based on the 1881 novel Heidi by Johanna Spyri. It was directed by Robert Taylor from a screenplay by Taylor, Joseph Barbera and Jameson Brewer, and stars Margery Gray as the title character, alongside the voices of Lorne Greene and Sammy Davis Jr. It is one of only four films Hanna-Barbera ever made that did not feature their trademark characters (along with Charlotte's Web, C.H.O.M.P.S., and Once Upon a Forest).

The film was released on November 19, 1982 by Paramount Pictures. Its box office receipts were disappointing, attributed by Joseph Barbera to incompetent distribution; it was released the same week as two other animated features.