Jan Beyzym was a Polish Jesuit priest and missionary who dedicated much of his life to serving people with leprosy in Madagascar. Born in 1850 in the Russian Empire, he was educated in Kiev before joining the Society of Jesus. After serving as a teacher in various Jesuit boarding schools, he traveled to Madagascar in 1898. He is primarily remembered for his profound humanitarian work, including the establishment of a leper hospital in Marana, which was completed in 1911.