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Family name Sitthiwat (Sitthiwat
, สิทธิวัจน์
) , throughout the world, is a rare cognomen. The last name Sitthiwat is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Likewise, Sitthiwat is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sitthiwat | China, United States, Thailand |
| สิทธิวัจน์ | Thailand |