"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. The film 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").