Gender masculine Βασίλης is a variant of Greek name Βασίλειος.Feasts and saints related to given name Βασίλης Saint Basil the Great, Archbishop of Caesarea in Cappadocia Feast day January 1 When is Βασίλης's name day? Βασίλης's Day is celebrated on January 1 in memory of Saint Basil the Great. Transcriptions Vassilis (la) Log in or register to post comments Be the first to rate this name Leave this field blank