Halfpenny is a surname. Notable people with the surname include:
Ben Halfpenny, English rugby league footballer of the 1920s and 1930s Brian Halfpenny (1936-2024), British Anglican priest Bronwyn Halfpenny (born 1963), Australian politician and daughter of John Halfpenny Chelsea Halfpenny (born 1991), English actress Jill Halfpenny, English actress John Halfpenny (1935-2003), Australian trade unionist and father of Bronwyn Halfpenny Leigh Halfpenny, Welsh rugby footballer William Halfpenny, English 18th-century architectural designer