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Family name Kanwalai (Kanwalai ) , throughout the world, is an extremely rare cognomen. Much more frequently, Kanwalai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kanwalai | Thailand |
Inprom, Hankamjan, Kulvichit, Pramotesuk, Nachaisit, Na Lampang, and Benjawattanakul