Once Upon a Forest is a 1993 animated adventure film produced by Hanna-Barbera Productions and distributed by 20th Century Fox. Based on the Furlings characters created by Rae Lambert, the film was directed by Charles Grosvenor and produced by David Kirschner, and stars the voices of Michael Crawford, Ellen Blain, Benji Gregory in his final film role, Paige Gosney, Will Estes, Janet Waldo, Elisabeth Moss and Ben Vereen.

The film is about a trio of "Furlings" – the story's term for young anthropomorphic animals – who go on an expedition to cure their poisoned friend. The film's environmental theme divided critics at the time of its release, along with the animation and story. The film grossed $6.6 million in the US against a budget of $13–16 million.