Academy Award for Best Animated Short Film
The Academy Award for Best Animated Short Film is an award given by the Academy of Motion Picture Arts and Sciences (AMPAS) as part of the annual Academy Awards, or Oscars, since the 5th Academy Awards (with different names), covering the year 1931–32, to the present.

From 1932 until 1970, the category was known as Short Subjects, Cartoons; and from 1971 to 1973 as Short Subjects, Animated Films. The present title began with the 46th Awards in 1974. During the first 5 decades of the award's existence, awards were presented to the producers of the shorts. Current Academy rules, however, call for the award to be presented to "the individual person most directly responsible for the concept and the creative execution of the film." Moreover, "[i]n the event that more than one individual has been directly and importantly involved in creative decisions, a second statuette may be awarded."

Only American films were nominated for the award until the National Film Board of Canada (NFB) won with "The Romance of Transportation in Canada" in 1952. (The first non-English-language international short to win was Zagreb Film's "Ersatz (The Substitute)" in 1961.)

The first film to win in this category was "Flowers and Trees" by Walt Disney, who has since held the category's record for most nominations (39) and most wins (12). MGM's "Tom and Jerry" (1940–67) is the category's most lauded animated series over all, being nominated for a total of 13 Oscars and winning 7. Among international studios, the NFB has the most wins in this category, with 6 Oscars. The biggest showing from Britain in this category is Nick Park, with three wins: 1 for "Creature Comforts" and 2 for the "Wallace and Gromit" series. 

The Academy defines "short" as being "not more than 40 minutes, including all credits." Ten films are shortlisted before nominations are announced. In the listings below, the title shown in boldface was the winner of the award in that given year, followed by the other nominees for that year.
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Academy of Motion Picture Arts and Sciences
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The Romance of Transportation in Canada
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Academy Award for Best Animated Short Film
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