Surname ประพงค์ (ประพงค์ 
) , throughout the world, is an extremely rare family name. The surname ประพงค์ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More frequently, ประพงค์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ประพงค์ | Thailand |