Cognomen พงศ์พฤกษ์ (พงศ์พฤกษ์ 
, Phongsapruet ) , in the world, is a very rare family name. The last name พงศ์พฤกษ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, พงศ์พฤกษ์ is the forename as well as the last name.