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Family name Wongkumjan (Wongkumjan ) , in the world, is a very rare last name. The family name Wongkumjan is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Wongkumjan | Thailand |
Anapat, Praniti, Prayoon, Narumon, Mr. Authawut, Anongnat, Nunthikarn, and Wachirawit