William Duckett

• William Duckett (Calne [MP, died 1686)], English gentleman, MP for Calne, 1659
• William Duckett (Calne MP, died 1749), British Army officer and Whig politician, MP for Calne, 1727–1741
• William Duckett (United Irishman), United Irishman
• William Duckett (Canadian politician), merchant and political figure in Quebec