William Gardiner may refer to:
Politicians William Gardiner (MP died 1558) (1522–1558), English MP for Barnstaple William Gardiner (MP for Helston) (1531–1597), English MP for Helston and Lostwithiel William Gardiner (British Army officer) (1748–1806), last British minister in Poland before its Third (and final) Partition William Gardiner (Wisconsin politician) (1826–?), farmer and member of the Wisconsin State Assembly in 1879 William Tudor Gardiner (1892–1953), American politician and Governor of Maine Sir William Gardiner, 1st Baronet (1628–1691), English politician
Others William Gardiner (mathematician) (died 1752), English mathematician William Gardiner (English composer) (1770–1853), English composer William Gardiner (botanist) (1808-1852), Scottish poet-botanist and umbrella maker William H. Gardiner (1861–1935), photographer William Gardiner (clergyman) (1867–1941), twice tried for the Peasenhall Murder William Guthrie Gardiner (died 1935), businessman and philanthropist William Gardiner (Australian composer) (born 1986), Australian composer William Gardiner (cricketer) (1864–1924), New Zealand cricketer William Nelson Gardiner (1766–1814), Irish engraver and bookseller William Gardiner (rugby union), Irish international rugby union player
See also William Gairdner (disambiguation) William Gardner (disambiguation)