William Stephen Chandler (August 27, 1895 – May 23, 1953) was an American basketball and baseball coach. He served as the head basketball coach at River Falls State Normal School—now known as the University of Wisconsin–River Falls—from 1919 to 1921, Iowa State University from 1921 to 1928, and Marquette University from 1930 to 1951, compiling a career college basketball coaching record of 260–290. Chandler was also the head baseball coach at Iowa State from 1923 to 1928, tallying a mark of 41–50.