Surname พนากาญ (พนากาญ 
) , throughout the world, is an extremely rare cognomen. The last name พนากาญ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More prevalently, พนากาญ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| พนากาญ | Thailand |