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Cognomen Luangvilay (Luangvilay
) , in all the world, is a rare family name. The surname Luangvilay is characteristic of Laos, where it is quite a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Luangvilay | Laos, United States |
Thidphachan, Soutchay, Bouthsady, and Somphathai