Ivan Aleksandrovich Fomin (3 February 1872 – 12 June 1936) was a Russian architect and educator. He began his career in 1899 in Moscow, working in the Art Nouveau style. After relocating to Saint Petersburg in 1905, he became an established master of the Neoclassical Revival movement. Following the Russian Revolution of 1917 Fomin developed a Soviet adaptation of Neoclassicism and became one of the key contributors to an early phase of Stalinist architecture known as postconstructivism.