Family name กุลวิทย์ (กุลวิทย์ 
, Kulvit 
, Kulawit 
) , globally, is a very rare last name. The family name กุลวิทย์ is characteristic of Thailand, where it is a rare surname, and India, where it is an extremely rare surname. Also, กุลวิทย์ is the forename as well as the last name.