William McDougall may refer to: William McDougall (politician, born 1822) (1822–1905), Canadian lawyer and politician from Ontario William McDougall (Nova Scotia politician) (1816–1886), Canadian shipbuilder and politician from Nova Scotia William McDougall (Quebec politician) (1831–1886), Canadian lawyer, judge and politician from Quebec William McDougall (psychologist) (1871–1938), British psychologist and author William Currie McDougall (1840-1920) Scottish minister and poet, central to the Coatbridge Free Church Scandal Bill McDougall (born 1966), Canadian ice hockey player See also William MacDougall (born 1944), Canadian politician William Dugald MacDougall, United States Navy admiral| William MacDougal, supposed full name of Groundskeeper Willie in The Simpsons television show