Gustav Klutsis (Latvian: Gustavs Klucis, Russian: ?????? ?????????? ??????) (January 4, 1895 – February 26, 1938) was a pioneering Latvian photographer and major member of the Constructivist avant-garde in the early 20th century.
He is known for the Soviet revolutionary and Stalinist propaganda he produced with his wife Valentina Kulagina.