Last name พัฒนวัฒน์ (Pattanawat 
, พัฒนวัฒน์ , Patanavat 
) , in the world, is a very rare family name. The surname พัฒนวัฒน์ is habitual in Thailand, where it is a rare surname, and India, where it is an extremely rare surname. Likewise, พัฒนวัฒน์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Patttanawat, Pattanawat, พัฒนวัฒน์ | Thailand |
| Patanavat | Thailand, India |
Pathanawat, Patkanawat, Pattanavath, Patthanawat, Phatanawat, Phattanawat, and Phatthanawat
มุกดาสนิท, ชาติประสพ, and เทียนสวัสดิ์