Rosa Rio (June 2, 1902 – May 13, 2010), born Elizabeth Raub, was an American theater and motion picture organist known for production and arrangement. Rosa Rio began her career as a silent film accompanist.

She became a leading organist on network radio for soap operas and dramas. She continued to perform until the age of 107, becoming one of the oldest performers in the music industry.

She provided silent film soundtrack accompaniment for such performers as Buster Keaton and Sir Charlie Chaplin.