April Fool may refer to:

• April Fools' Day, a notable day celebrated in many countries on April 1
  • April Fool's Day (disambiguation) for other uses
• April Fool (Beanie Baby), a Beanie Baby bear produced by Ty, Inc. in 2007
• April Fool (film), a 2010 Malayalam-language film
• "April Fool" (song) by Chalk Circle from their 1986 EP The Great Lake
• April Fool (spy), the codename for a double agent who allegedly played a role in the downfall of Saddam Hussein
• The April Fools, a 1969 film
• April fool!, a phrase said in the United Kingdom when playing a trick or prank on another person. The American version of this phrase is April fools!
• A fairy on the show The Fairly OddParents
• A song by Soul Asylum from their 1992 album Grave Dancers Union
• "April Fools (He Had the Change Done at the Shop)"