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Last name Nilsawaddi (Nilsawaddi ) , across the world, is a rare surname. The cognomen Nilsawaddi is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Nilsawaddi | Thailand |
Phumin, Sanchai, Sarayut, Wirarat, Suntchai, Nichapat, Nichches, Wilaichitra, and Chalermkiat