Born in the village of Sergino vyaznikovskogo district of Ivanovo-Voznesensk province. In 1949 he graduated from the Palekh art school. Teachers - A. V. Kotuhin, D. N. Butorin. In 1953-1978 years, he worked in the Association of Palekh artists (1954 - Palekh art-production workshops). Member of the Union of artists of the USSR. Died 3 Mar 1980 in Svergie.
Was engaged in monumental painting (painting the lobby of the Ivanovo Palace of culture and technology of the textile they. The 30th anniversary of the Victory (1975)). Themes of works: folklore, literature, landscape, battle, Soviet. Participated in exhibitions since 1955. The work of G. K. Myznikov are stored in museums: gmpi, Ivanovo OXM, OXM Irkutsk, Russian Museum of A. S. Pushkin "Moika 12", GMANN, HF Russia.
