Michael Barry Finnerty (born December 3, 1951) is an American jazz guitarist, keyboardist, singer, songwriter, and arranger, known for his work as a touring and recording session musician for Miles Davis, The Crusaders, the Brecker Brothers, Hubert Laws, and Ray Barretto. Finnerty is the author of books on music improvisation and a semi-autobiographical novel.

Finnerty was born in San Francisco and raised on the West Coast, studying at the San Francisco Conservatory of Music and University of California Berkeley. He lived in Hong Kong with his mother in the early 1960s. When he was fourteen, he began playing electric guitar and joined a band that opened a show for Herman’s Hermits. On returning to San Francisco, he became friends with guitarist Jim Checkley, who invited him to join Beefy Red in 1969. He played in that band for several years.