William Fisher may refer to:
- William Fisher (I) (June 13, 1860 - October 9, 1903)
- William Fisher, Sr. (October 3, 1884 - December 16, 1964)
- William Fisher, Jr. (November 19, 1907 - August 19, 1976)
- William Fisher III (December 27, 1934 - April 30, 1983)