Cognomen ทศางค์ (Thosang 
, Thasang 
, ทศางค์ ) , all over the world, is a very rare surname. The family name ทศางค์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, ทศางค์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thosang | Thailand, India, United States |
| Thasang | Thailand, India, South Africa |
| ทศางค์ | Thailand |