Gender feminine Θανασία is a modern form of Greek name Αθανασία.Feasts and saints related to given name Θανασία Sts Athanase et Cyrille, Patriarches d'Alexandrie Feast day January 18 When is Θανασία's name day? Θανασία's Day is celebrated on January 18 in memory of Sts Athanase et Cyrille. Variantes et traductions Θανασούλα (el) Transcriptions Thanassia (la) Log in or register to post comments Be the first to rate this name Leave this field blank