William Hearst may refer to:
- William Randolph Hearst (1863–1951), American newspaper magnate and New York Congressman
- William Randolph Hearst, Jr. (1908–1993), William Randolph Hearst's son
- William Randolph Hearst III (born 1949), William Randolph Hearst, Jr.'s son, and grandson of the newspaper magnate
- William Randolph Hearst II (born 1942), John Randolph Hearst's son, and grandson of the newspaper magnate
- William Howard Hearst (1864–1941), Premier of Ontario, Canada, 1914–1919