Ivan Sergeyevich Kuznetsov (Russian: Иван Сергеевич Кузнецов) (May 27, 1867 – June 3, 1942) was a Russian architect primarily known for his pre-1917 works in Moscow, Moscow suburbs, and Vichuga. Born into a working-class family, Kuznetsov independently broke into the elite architecture society of Moscow. He worked in many different styles, but was most successful in Neoclassical architecture and Russian Revival. He excelled in industrial architecture, and designed more than 600 buildings through the commissions of Nikolay Vtorov. Kuznetsov remained in high demand during the Soviet period.