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Cognomen Janthaduang (Janthaduang
) , in all the world, is a very rare family name. The family name Janthaduang is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname, and Malaysia.
| VARIANT | COUNTRY |
|---|---|
| Janthaduang | Malaysia, Thailand |
Janlon, Kanapat, Artthachai, Kannikar, Natthapon, and Chattharika