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Family name Kongsompoj (Kongsompoj ) , around the world, is a very rare cognomen. The surname Kongsompoj is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kongsompoj | Thailand |
Visanu, Warayut, Wunchai, Boonsueb, Boonseub, Nutthaputh, and Wachiraporn