William Blackstone (1723–1780) was an English judge and jurist.
William Blackstone may also refer to:
William Seymour Blackstone (1809–1881), his grandson, MP for Wallingford William Blaxton, sometimes spelled Blackstone (1595–1675), early New England settler William E. Blackstone (1841–1935), American evangelist and Christian Zionist William Blackstone, the name sometimes attributed to Billy Higgins (vaudeville) (1888–1937), songwriter and vaudeville comedian Statue of William Blackstone, located in Washington, D.C. William T. Blackstone (1931–1977), American academic and philosopher
See also Blackstone (disambiguation)