Surname พุทธิวัฒน์ (พุทธิวัฒน์ 
, Puttiwat , Phuttiwat ) , throughout the world, is a rare family name. The surname พุทธิวัฒน์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Likewise, พุทธิวัฒน์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Puttiwat, พุทธิวัฒน์, Phuttiwat, Pudittawat | Thailand |
Phtthiwat, Phutthiwat, Phutwat, Pootthiwat, Puthitiwat, Puthivat, Puthiwat, and Putthiwat