Means "manifestation of God" from Greek θεος (theos)
"god" and φανης (phanes)
"appearing". This name was borne by a few saints
, including an 8th-century chronicler from Constantinople and a 19th-century Russian Orthodox saint, Theophanes the Recluse, who is Феофан (Feofan)
in Russian. Another famous bearer was a 14th-century Byzantine icon painter active in Moscow.