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Last name Khlangsin (Khlangsin ) , in all the world, is a very rare cognomen. The family name Khlangsin is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Khlangsin | Thailand |
Somsri, Nasapon, Thippawan, and Phra Yutthapong