Gender masculine Μέρτος is a variant of Greek name Μέρτιος.Feasts and saints related to given name Μέρτος St Merce Feast day January 12 When is Μέρτος's name day? Μέρτος's Day is celebrated on January 12 in memory of St Merce. Log in or register to post comments Be the first to rate this name Leave this field blank