Family name เสวตร์ (Seo 
, เสวตร์ 
) , globally, is a common cognomen. The last name เสวตร์ is habitual in U.S. Virgin Islands, where it is quite a common surname, Cayman Islands, and Singapore, where it is quite a rare surname. In absolute terms, it most frequently occurs in the United States, Indonesia, and South Korea. Likewise, เสวตร์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Seo | China, Indonesia, United States, Malaysia, South Korea |
| เสวตร์ | Thailand |