Surname รุ่งกุล (Parungkul 
, รุ่งกุล, Roungkul) , in all the world, is an extremely rare cognomen. The family name รุ่งกุล is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, รุ่งกุล is the forename as well as the last name.