William Ormsby-Gore may refer to:
William Ormsby-Gore (1779–1860), MP for County Leitrim, Caernarvon and North Shropshire William Ormsby-Gore, 2nd Baron Harlech (1819–1904), MP for Sligo in the British Parliament (1841–1852) William Ormsby-Gore, 4th Baron Harlech (1885–1964), British MP and Cabinet Minister
See also William Gore (disambiguation)