Last name พงษ์จักร (Pongjak 
, พงษ์จักร , Pongchak 
) , in the entire world, is a very rare cognomen. The cognomen พงษ์จักร is habitual in Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname. More frequently, พงษ์จักร is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Pongjak, พงษ์จักร | Thailand |
| Pongchak | Thailand, United States |