Gender masculine Κέλσιος is a form of Latin name Celcius.Feasts and saints related to given name Κέλσιος Saints Julian, Basilissa, Celsus and Anthony, Martyrs Feast day January 8 When is Κέλσιος's name day? Κέλσιος's Day is celebrated on January 8 in memory of Saints Julian, Basilissa, Celsus and Anthony. Transcriptions Kelsios (la) Log in or register to post comments Be the first to rate this name Leave this field blank