Gender masculine Female form Νάσια Νάσος is a short form of Greek name Θανάσος.Feasts and saints related to given name Νάσος Saints Athanasius and Cyril, Patriarchs of Alexandria Feast day January 18 When is Νάσος's name day? Νάσος's Day is celebrated on January 18 in memory of Saints Athanasius and Cyril. Transcriptions Nassos (la) Log in or register to post comments Be the first to rate this name Leave this field blank