Lygon is a surname. Notable people with the surname include:
Henry Lygon, 4th Earl Beauchamp (1784–1863), British soldier and politician
Henry Lygon, 5th Earl Beauchamp (1829–1866), British politician
Frederick Lygon, 6th Earl Beauchamp (1830–1891), British Conservative politician
William Lygon, 7th Earl Beauchamp (1872–1938), British politician, leader of the Liberal Party, and Governor of New South Wales
Hugh Patrick Lygon (1904–1936), son of William Lygon
William Lygon, 8th Earl Beauchamp (1903–1979), politician
