Surname ชวนัส (ชวนัส 
) , in the world, is an extremely rare family name. The family name ชวนัส is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more prevalently, ชวนัส is the forename as well as the last name.
ลําภู, สันติสาสน์, รัตนวิชัย, พันธุ์ยศ, ฉัตรธนาเวช, and ศรัณย์ภัทรกุล