Family name วิริยะวิทย์ (วิริยะวิทย์ 
, Viriyavit ) , in all the world, is a very rare cognomen. The surname วิริยะวิทย์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, วิริยะวิทย์ is the forename as well as the last name.