William Leigh (1550–1639) was an English clergyman and royal tutor.
William Leigh may also refer to: William Leigh (MP), member of Parliament for Cumberland in 1399 and 1414 William Leigh (Dean of Hereford) (1752–1809), Anglican priest William Henry Leigh (merchant) (1781–1818), merchant and former colonial official in Sierra Leone William Leigh (judge) (1783–1871), American jurist William Henry Leigh, 2nd Baron Leigh (1824–1905), British politician William Leigh, ship's surgeon, early settler and landowner at Clarendon, South Australia c.1846 William Robinson Leigh (1866–1955), American artist William Colston Leigh Sr. (1901–1992), American businessman, created one of the world's leading speakers' agencies William Gerard Leigh (1915–2008), member of the British Life Guards and major figure in the polo world
See also William Lee (disambiguation)