Doug's 1st Movie is a 1999 American animated comedy film based on the Nickelodeon-produced episodes of the Disney television series Doug. The film was directed by Maurice Joyce, and stars the regular television cast of Tom McHugh, Fred Newman, Chris Phillips, Constance Shulman, Frank Welker, Alice Playten, Guy Hadley, and Doris Belack. Produced by Walt Disney Television Animation and Jumbo Pictures with animation provided by Plus One Animation, it was released by Buena Vista Pictures Distribution under its Walt Disney Pictures label on March 26, 1999. The film serves as a finale for the Doug TV show. An accompanying Mickey Mouse Works short "Donald's Dynamite: Opera Box" was released with the film.

The film received generally negative reviews, who criticized its story, screenplay, and characters, however, the voice acting received some praise. Despite the title and its mild success at the box office, no further films based on Doug were made.