The actress died in Glendale, California on Friday, the Walt Disney Company has said.
Since 1986, Taylor provided voice-overs for animated TV series, films and theme parks featuring Mickey Mouse's high-pitched and giggly partner Minnie.
She also played characters in The Simpsons, including Bart's dorky classmate Martin.
Mirroring the character she played, Taylor married Wayne Allwine, the voice of Mickey until his death in 2009.
Bob Iger, Disney's chairman and chief executive, paid tribute to Taylor in a statement released on Saturday.