Bob Stewart (born February 3, 1945, in Sioux Falls, South Dakota), is an American jazz tuba player. He received his Bachelor of Music Education degree from the Philadelphia College of the Performing Arts and his master's degree in education from Lehman College Graduate School. Stewart taught music in Pennsylvania public schools and at the Fiorello H. LaGuardia High School of Music & Art and Performing Arts in New York City. He is now a professor at the Juilliard School and is a "distinguished lecturer" at Lehman College.