Surname ศรีวรรัตน์ (ศรีวรรัตน์ 
, Sriworrarat , Srivorarat ) , in all the world, is a rare last name. The last name ศรีวรรัตน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, ศรีวรรัตน์ is the forename as well as the last name.