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Family name Mongkolyong (Mongkolyong ) , in the world, is a very rare surname. The cognomen Mongkolyong is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Mongkolyong | Thailand |
Sakda, Veraya, Sirilak, Thitipat, and Thanaphoom