Surname วิทยาวัฒน์ (วิทยาวัฒน์ 
, Wittawath , Witthavat 
) , in all the world, is a very rare last name. The last name วิทยาวัฒน์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, วิทยาวัฒน์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Witthayawat, Wittawath, วิทยาวัฒน์ | Thailand |
| Witthavat | United States, Thailand |
Vitcharawat, Vittayawat, Wittayawat, Wittayawatn, Witthawats, Witthiwat, and Wityawat