Family name Trunjaroen (Trunjaroen 
) , across the world, is an extremely rare cognomen. The last name Trunjaroen is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Trunjaroen | Thailand |
Nuchada, Panupong, Pongpativat, and Nuttawuth