Mr. Mouse Takes a Trip is a 1940 American animated short film produced by Walt Disney Productions and released by RKO Radio Pictures. The film was directed by Clyde Geronimi and features original music by Leigh Harline and Oliver Wallace. The film was animated by Clyde Geronimi, Ken Muse, Ed Love, and Marvin Woodward. The voice cast includes Walt Disney as Mickey, Lee Millar as Pluto, and Billy Bletcher as Pete. It was the 109th short in the Mickey Mouse film series to be released, and the third for that year.

Clito "Clyde" Geronimi, known as Gerry, was an American animation director. He is best known for his work at Walt Disney Productions.