Cynthia Phelps (born 1961 in Hollywood, Los Angeles, California) is an American violist whose versatile career involves work as a chamber musician, solo artist, and orchestral musician. Phelps is currently the Principal Violist of the New York Philharmonic, a position to which she was appointed in 1992. She is a former faculty member of the Manhattan School of Music and is currently a faculty member at the Juilliard School.