Ivan Mikhailovich Martinov SJ (7 October 1821, at Kazan, Russia – 26 April 1894, at Cannes, France), was a Russian Jesuit priest.
After his conversion to Catholicism and consequent exile, he placed his vast knowledge of Slavic culture at the service of a better understanding between the Russian Orthodox and Catholic Churches.
After brilliant university studies at Saint-Petersburg (where he obtained the ‘gold medal’) Martinov undertakes a long journey across Europe.
His conversations with Ravignan led him to join the Catholic Church came from Russian Orthodoxy, and following the example of his friend Ivan Gagarin, in requesting admission in the Society of Jesus (18 September 1845).
Appointed at the ‘Saints Cyril and Methodius Society’, he worked in collaboration with Ivan Gagarin, Eugene Balabin, and others in making the Russian and Slavic religious and historical heritage better known in Western Europe.