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Family name Lamlerttham (Lamlerttham ) , around the globe, is a very rare cognomen. The family name Lamlerttham is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Lamlerttham | Thailand |
Sirinya, Sirinwech, Sirinmas, Phongphant, and Benjamaporn