Leo Smith may refer to:
F. Leo Smith (1903-1999), American state legislator and district attorney Leo Smith (baseball) (1859–1935), American baseball player Leo Smith (composer) (1881–1952), English composer active in Canada Leo Smith (sculptor) (born 1947), American sculptor Leo Richard Smith (1905–1963), American prelate of the Roman Catholic Church Wadada Leo Smith (born 1941), American avant-garde jazz trumpeter and composer Leo Smith (hurler), Irish hurler Leo W. Smith II, United States Air Force general
See also Leo Smit (disambiguation)