Surname มงคลศิริวัฒน์ (มงคลศิริวัฒน์ 
) , worldwide, is a very rare last name. The cognomen มงคลศิริวัฒน์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, มงคลศิริวัฒน์ is the forename as well as the last name.