Family name Teerarojchin (Teerarojchin 
) , in the entire world, is a very rare surname. The cognomen Teerarojchin is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Teerarojchin | Thailand |
Isaree, Issaree, Ploythala, and Narongruch