Bill O'Connell (born on August 22, 1953 in New York City) is a jazz pianist and bandleader. He is most associated with Latin jazz and also hard bop. He studied piano at the Oberlin Conservatory of Music, but has mostly lived in NYC or Long Island. He worked for Chet Baker and Sonny Rollins at early stages in his career. From 1982 to present he has often collaborated and toured with Dave Valentin.