Surname ศิลารัตน์ (ศิลารัตน์ 
, Silarat 
, Silarut ) , across the world, is quite a rare cognomen. The surname ศิลารัตน์ is characteristic of South-eastern Asia, particularly Thailand, where it is quite a rare surname. Also, ศิลารัตน์ is the forename as well as the last name.