Bob Donewald, Sr. (Born May 29, 1942) is a retired American college basketball coach. He was the first coach to lead Illinois State University to the NCAA post-season national tournament, and he did so for three consecutive seasons. His 1983 team gave Illinois State its first Missouri Valley Conference basketball championship and his 1984 team captured Illinois State's first Division I NCAA Tournament victory. He coached at South Bend St. Joseph's High School for 8 seasons, from 1965–66 to 1972–73.