William Priestley may refer to:
William Priestley (St Mawes MP) (c.1594–1664), lawyer and member of the English House of Commons. William Priestley (Louisiana planter) (1771–1838), second son of Dr Joseph Priestley William Priestley (wool clothier) (1779–1861), Halifax wool clothier, and founder of the Halifax Choral Society Sir William Overend Priestley (1829–1900), gynaecologist and Conservative politician Sir William Priestley (Liberal politician) (1859–1932), Liberal politician
See also William Priestly MacIntosh (1857-1930), Australian sculptor