Ioannis Tzen also known as Ioannis Dzenos, was a 17th-century Greek baroque painter. He was active on the Ionian islands and a prominent member of the local school. He also represented Crete towards the end of the Cretan School. His painting style reflects an affiliation with Emmanuel Tzanes. He was active on the island Corfu. Greek painters affiliated with the same island active during the same period were Theodore Poulakis, Stephanos Tzangarolas. Fifteen of his works have survived. His most notable work is a painting of the Virgin and Child.