Nikon ST., surnamed METANOITE (from his frequent introduction of the word μετανοεῖτο, repent, in his sermons), an Eastern ascetic, flourished in the 10th century. He had lived in a monastery on the borders of Pontus and Paphlagonia, and in 961 went as a missionary into Armenia. He went also as a missionary to Crete. He afterwards labored in Lacedemon and Corinth. He died in 998. His life, which was written by a Lacedemonian abbot, father Sirmond translated into Latin, and Baronius has freely made use of it in the tenth volume of his Annals, under the years 961-998. To Nikon is attributed a curious and interesting little treatise in the Greek language, On the impious Religion of the most wicked Armenians, which will be found of use in illustrating the state of manners, as well as the ecclesiastical history of that country. It is inserted in Latin in the 25th volume of the Bibl. Patr., and is also given in Cotelerius, Patr. Apostol. vol. ii, in a note to Const. Apostol. (lib. ii, cap. 24, p. 235, 236). See also NICON.