William Ridley

William Ridley may refer to:
 * William Ridley (engraver) (1764–1838), British engraver
 * William Ridley (bishop) (1836–1911), Anglican bishop in Canada
 * William Ridley (Presbyterian missionary) (1819–1878), Presbyterian missionary and linguist in Australia
 * William Henry Ridley (1816–1882), Church of England priest and author