Cognomen พัฒนกิจ (พัฒนกิจ 
, Phattanakit , Phatthanakit ) , around the world, is a rare surname. The surname พัฒนกิจ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Likewise, พัฒนกิจ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phatthanakit, Patthanakit, Phattanakit, พัฒนกิจ | Thailand |
Patanakit, Patchanakit, Pathanakij, Pathanakit, Pattanakij, Pattanakit, Pattanatkit, Pattanij, Phatanakit, Phathuphattanakit, Phattanakij, Phattankij, Phatthanagit, Phatthanankic, Phattnakit, and Powattanakit