Family name แก้วพงษ์ (Kawpong 
, แก้วพงษ์, Kaekphong ) , all over the world, is a very rare cognomen. The last name แก้วพงษ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Also, แก้วพงษ์ is the forename as well as the last name.