Surname พนิน (Phanin 
, พนิน ) , throughout the world, is a very rare last name. The last name พนิน is habitual in Thailand, where it is a very rare surname, Cambodia, and the United States, where it is an extremely rare surname. Not in comparison with a country's population, this name is the most popular in Thailand, India, and the United States. More prevalently, พนิน is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phanin | United States, Cambodia, India, Thailand |
| พนิน | Thailand |
กรวาทิน, and บูรณะพาณิชย์กิจ