Last name วิบูลย์กิจ (วิบูลย์กิจ 
, Wibulkit , Viboonkij ) , in the entire world, is a rare cognomen. The surname วิบูลย์กิจ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, วิบูลย์กิจ is the forename as well as the last name.