Surname ศิริสุทธิ (ศิริสุทธิ 
, Sirisuthi ) , in the entire world, is a very rare family name. The family name ศิริสุทธิ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, ศิริสุทธิ is the forename as well as the last name.