David Charles Abell (born 1958) is an American orchestral conductor, multi-instrumentalist, and musicologist. Described as “a protean talent” with “impeccable and inspired” skill as a conductor, he is active in symphonic music, opera and musical theatre. Abell was one of Leonard Bernstein's last protégés, and collaborated with Bernstein on many works during the 1980s. Abell is known for his television appearances worldwide as conductor of the Les Misérables' 10th and 25th Anniversary concerts. He is also recognized as an authoritative interpreter of the musicals of Stephen Sondheim.