Cognomen Thoopkrajae (Thoopkrajae 
) , throughout the world, is a very rare family name. The family name Thoopkrajae is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Thoopkrajae | Thailand |
Maytita, Parinda, Panthita, Panissara, and Rattanachai