Cognomen Sinkanaruk (Sinkanaruk 
) , around the globe, is a very rare family name. The last name Sinkanaruk is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sinkanaruk | Thailand |
Praenika, Pornsak, Supachai, and Panathakorn