Family name Valerious (Валериус 
, Valerious 
, กล้าหาญ) , all around the world, is a rare cognomen. The cognomen Valerious is habitual in Belarus, where it is a rare surname, Russia, where it is a very rare surname, and the United States, where it is an extremely rare surname. Very seldom, Valerious is the forename as well as the last name.