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Cognomen Trongkasemsuk (Trongkasemsuk ) , around the world, is a very rare last name. The surname Trongkasemsuk is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Trongkasemsuk | Thailand |
Thanita, Nichnuch, Werawat, Chatchawan, and Chatchawarn