William or Bill Sparks may refer to:
Bill Sparks (1922–2002), British soldier in World War II William A. J. Sparks (1828–1904), U.S. Representative from Illinois William J. Sparks (1905–1976), Exxon chemist and president of the American Chemical Society William Morris Sparks (1872–1950), U.S. federal judge William Henry Sparks (1800–1882), American lawyer and poet
See also Billy Sparks, character in Young Sheldon