Cognomen Chaipankaen (Chaipankaen 
) , all around the world, is a very rare last name. The surname Chaipankaen is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Chaipankaen | Thailand |
Phensri, Banchong, and Nanthaphat