William H. Davis

William H. Davis may refer to:
 * William Hammatt Davis (1879–1964), American lawyer and government official
 * William Hatcher Davis (1939–2017), professor at Auburn University
 * William H. Davis (educator) (1848–1938), American educator and school administrator
 * William H. Davis (sheriff), sheriff of Allegheny County from 1954 to 1970
 * William H. Davis (Pennsylvania state representative), in office 1854
 * William H. Davis (Pennsylvania state senator) (1900–1955), in office 1955