Mickey's Birthday Party is a 1942 American animated short film directed by Riley Thomson, produced by Walt Disney Productions and distributed by RKO Radio Pictures. The 114th short to feature Mickey Mouse, it was released on February 7, 1942. The animated film was directed by Riley Thomson and animated by Les Clark, James Moore, Ken Muse, Armin Shaffair, Riley Thompson, Bernie Wolf, and Marvin Woodward. It was the 116th short in the "Mickey Mouse" film series to be released, and the first for that year.