Family name วิบูลรัตน์ (วิบูลรัตน์ 
, Wiboonrat 
) , in all the world, is a very rare surname. The cognomen วิบูลรัตน์ is characteristic of Thailand, where it is a rare surname, and Norway, where it is a very rare surname. Also, วิบูลรัตน์ is the forename as well as the last name.