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Family name Siwatat (ศิวัฒน์ , Siwatat
) , in all the world, is an extremely rare last name. Predominantly, Siwatat is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ศิวัฒน์, Siwatat | Thailand |
Boonkham, Durongsak, and Changkuntod