Surname Dumklai (Dumklai 
) , in the world, is an extremely rare family name. The last name Dumklai is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Dumklai | Thailand |
Chalad, Pimpan, Surachet, Phannida, and Woothipong