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Cognomen Luengrungroj (Luengrungroj ) , worldwide, is a very rare last name. The family name Luengrungroj is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Luengrungroj | Thailand |
Niti, Suphak, Phochara, and Patcharaporn