Fantasia 2000 is a 1999 American animated musical anthology film produced by Walt Disney Feature Animation. Produced by Roy E. Disney and Donald W. Ernst, it is the sequel to Disney's 1940 animated feature film Fantasia. Like its predecessor, Fantasia 2000 consists of animated segments set to pieces of classical music. Segments are introduced by celebrities including Steve Martin, Itzhak Perlman, Quincy Jones, Bette Midler, James Earl Jones, Penn & Teller, James Levine, and Angela Lansbury in live action scenes directed by Don Hahn.

After numerous unsuccessful attempts to develop a Fantasia sequel, The Walt Disney Company revived the idea shortly after Michael Eisner became chief executive officer in 1984. Development paused until the commercial success of the 1991 home video release of Fantasia convinced Eisner that there was enough public interest and funds for a sequel, to which he assigned Disney as executive producer. The music for six of the film's eight segments is performed by the Chicago Symphony Orchestra conducted by James Levine. The film includes The Sorcerer's Apprentice from the 1940 original. Each new segment was produced by combining traditional animation with computer-generated imagery. Fantasia 2000 is also generally linked to the Disney Renaissance, as it commemorates Walt Disney's third animated feature film.

Fantasia 2000 premiered on December 17, 1999, at Carnegie Hall in New York City as part of a concert tour that also visited London, Paris, Tokyo, and Pasadena, California. The film was then released in 75 IMAX theaters worldwide from January 1 to April 30, 2000, marking the first major Hollywood motion picture to be released in IMAX and also the first feature-length animated film to be released in the format. Its general release in regular theaters followed on June 16, 2000. The film received mostly positive reviews from critics, who praised several of its sequences, while also deeming its overall quality uneven in comparison to its predecessor. However, budgeted at about $80–$85 million, the film only grossed $90.9 million worldwide, making it a box office flop.