Konstantin Stepanovich Melnikov (Russian: Константин Степанович Мельников; August 3 [O.S. July 22] 1890 – November 28, 1974) was a Russian architect and painter. His architectural work, compressed into a single decade (1923–33), placed Melnikov on the front end of 1920s avant-garde architecture. Although associated with the Constructivists, Melnikov was an independent artist, not bound by the rules of a particular style or artistic group. In 1930s, Melnikov refused to conform with the rising Stalinist architecture, withdrew from practice and worked as a portraitist and teacher until the end of his life.