Valery Ivanovich Mezhlauk (Russian: Вале́рий Ива́нович Межла́ук; Latvian: Valērijs Mežlauks) (1893–1938) was a government and party official in the Soviet Union during the decades of the 1920s and 1930s. He is best remembered as the Chairman of the State Planning Committee (Gosplan) from 1934 to 1937. He became a victim of Stalin’s Great Purge and was executed on July 29, 1938. He was posthumously rehabilitated in 1956.