Aleksei Mikhailovich Gan (Russian: Алексей Михайлович Ган; born Imberkh; 1887[1] or 1893[2] – 8 September, 1942[1][2]) was a Russian anarchist and later Marxist avant-garde artist, art theorist and graphic designer. Gan was a key figure in the development of Constructivism after the Russian Revolution.[3]