Cognomen ติวัฒน์ (Tiwat 
, ติวัฒน์ , Tiwart ) , in the world, is an extremely rare surname. The surname ติวัฒน์ is habitual in Southern Asia, particularly India, where it is an extremely rare surname. Much more frequently, ติวัฒน์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tiwat | India, Thailand, United States |
| ติวัฒน์ | Thailand |
| Tiwart | United States, Thailand, India |