Last name ขวัญพงศ์ (ขวัญพงศ์ 
, Kwanpong , Khwanphong ) , all over the world, is a very rare cognomen. The cognomen ขวัญพงศ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, ขวัญพงศ์ is the forename as well as the last name.