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Last name Kirdsang (Kirdsang ) , all over the world, is a very rare cognomen. The family name Kirdsang is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kirdsang | Thailand |
Rungsak, Jirawan, Supakorn, Kammolaphat, and Kamolaphat