Nice Dreams is a 1981 American action adventure comedy film directed by Tommy Chong and starring Cheech & Chong, in their third feature film. Released in 1981 by Columbia Pictures, the film focuses on the duo having gotten rich selling cannabis out of an ice cream truck, and evading the Drug Enforcement Administration, led by Sergeant Stedanko (Stacy Keach), who are trying to bust an alleged drug kingpin named "Mr. Big", and discover a strain of marijuana that turns people into lizards, including Stedanko, who has been smoking cannabis to get inside the head of a drug user.

The film costars Paul Reubens and Evelyn Guerrero, and features small appearances by comedians Sandra Bernhard and Michael Winslow, and a cameo by Timothy Leary. Nice Dreams grossed $35 million, but it received mixed reviews.