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.
"For more than 30 years, Minnie and Russi worked together to entertain millions around the world - a partnership that made Minnie a global icon and Russi a Disney Legend beloved by fans everywhere," said Mr Iger.
"We take comfort in the knowledge that her work will continue to entertain and inspire for generations to come."