Alexander Wallace Matheson ([[June 11], 1903-March 3, 1976) was a Prince Edward Island politician. He was first elected to the provincial legislature in 1940 as a Liberal. Matheson became minister of health and welfare in the government of Premier J. Walter Jones in 1948 and succeeded Jones as premier and Attorney-General in 1953. His government was defeated in the 1959 election but remained Liberal Party leader until 1965 when he retired from politics. In 1967 he was appointed a County Court Judge.