Cognomen Tulsuk (ทิวสน 
, Tulsuk ) , in the entire world, is a very rare last name. The cognomen Tulsuk is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, Tulsuk is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ทิวสน, Tulsuk | Thailand |