Family name กุลดิษฐ์ (กุลดิษฐ์ 
, Kuladit 
) , globally, is a very rare cognomen. The cognomen กุลดิษฐ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, กุลดิษฐ์ is the forename as well as the last name.