William B. Saunders (September 23, 1896 – August 14, 1977) was an American football, basketball, and baseball coach and college athletics administrator. He played college football at Mississippi Agricultural & Mechanical College—now known as Mississippi State University—and is also said to have played at Auburn University and the Georgia Institute of Technology. Saunders served as the head football coach (1928–1929), head basketball coach (1928–1930) and head baseball coach (1929–1930) at Mississippi State Teachers College—now known as the University of Southern Mississippi.