Cognomen สุวรรณกาล (สุวรรณกาล 
, Suwannakaln) , in the entire world, is a very rare last name. The surname สุวรรณกาล is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, สุวรรณกาล is the forename as well as the last name.