Ivan Fyodorov (, sometimes transliterated as Fedorov or Fiodorov) or Fedorovic ( Fedorovych, , Fedorow) (born ca. 1525 in Grand Duchy of Moscow, died December 16, 1583 in Lwów, Polish–Lithuanian Commonwealth) was one of the fathers of Eastern Slavonic printing (along with Schweipolt Fiol and Francysk Skaryna), he was the first known Ruthenian printer in Muscovy and the Polish-Lithuanian Commonwealth, he was also a skilled cannon maker and the inventor of a multibarreled mortar.