William Gardiner

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