Fievel most commonly refers to Fievel Mousekewitz, the young immigrant mouse who is the main character in the animated film series An American Tail (starting with the 1986 movie of the same name) and its sequels such as An American Tail: Fievel Goes West. The character is portrayed as a Russian- Jewish mouse who becomes separated from his family while they emigrate to the United States and then goes on adventures trying to reunite with them and build a new life in America.

The name “Fievel” (also spelled “Feivel”) is originally a Yiddish masculine given name, traditionally used in Jewish communities and understood as a diminutive of the name Feivush. Because of the popularity of the An American Tail films, the name is now strongly associated in popular culture with that specific animated mouse character and his immigration-themed stories.