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Cognomen Dongkham (Dongkham
) , worldwide, is a very rare surname. The family name Dongkham is characteristic of Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Dongkham | United States, Thailand |
Somchan, Kiawdao, Kidakarn, Phimsiri, Kanokporn, Siriwattana, and Benchamaporn