William Heard may refer to:
- William Wright Heard (1853–1926), Governor of Louisiana, 1900–1904
- William Heard (cardinal) (1884–1973), Scottish cardinal of the Roman Catholic Church
- William H. Heard (biologist), American malacologist
- William Henry Heard (1850–1937), American clergyman and diplomat
This disambiguation page lists articles about people with the same name.
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