Cognomen ตอสุวรรณ (ตอสุวรรณ 
) , all around the world, is a rare surname. The last name ตอสุวรรณ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, ตอสุวรรณ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ตอสุวรรณ | Thailand |