Major Wilfrid Foulston Vernon (1882 – 1 December 1975) was a Labour Party politician in the United Kingdom who served as a Member of Parliament (MP) between 1945 and 1951.

During 1918 he worked in the flying boat section at Felixstowe airbase and after the war became the chief draughtsman for the British Aeroplane Company.

In January 1948, Vernon gave a speech on China in the House of Commons denouncing Chiang Kai-shek's Nationalist government and endorsing Mao Zedong's Communists.

Vernon claimed that "the Chinese government are running one of the most ruthless and cruel police states in existence", and called for Britain to adopt "a policy of friendship and trade with the liberated areas" under Communist control.

In February 1952, Vernon was interrogated by MI5 officer Jim Skardon and admitted having been part of a pre-war Soviet espionage ring.