Ivan Ivanovich

Ivan Ivanovich (Иван Иванович) may refer to:


 * Ivan Ivanovich (Vostok programme), a mannequin used in testing the Russian Vostok spacecraft in preparation for its crewed missions
 * SuitSat, a retired Russian Orlan spacesuit with a radio transmitter mounted on its helmet deployed as an OSCAR satellite in 2006
 * Иван Иванович, the Russian equivalent of "John Doe"
 * Ivan Ivanovitch, an English-language idiom of the 19th century

People

 * Ivan II of Moscow (1326–1359), Grand Prince of Moscow and Grand Prince of Vladimir from 1353
 * Ivan the Young (1458–1490), eldest son and heir of Ivan III of Russia
 * Ivan V of Ryazan (1496–1533 or 1534), the last nominally independent ruler of Ryazan
 * Tsarevich Ivan Ivanovich of Russia (1554–1581), second son and heir apparent of Ivan IV (the Terrible)
 * Ivan Ivanovitch (fencer), French Olympic fencer