Cognomen เพิ่มสุวรรณ (เพิ่มสุวรรณ, Peumsuwan 
, Permsuvan 
) , across the world, is a very rare family name. The last name เพิ่มสุวรรณ is habitual in Hong Kong, where it is a rare surname, Belgium, where it is a very rare surname, and Finland. Not in comparison with a country's population, the name is most common in Hong Kong, Thailand, and Belgium.