Surname Rotchanayothin (Rotchanayothin 
) , across the world, is a very rare last name. The cognomen Rotchanayothin is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Rotchanayothin | Thailand |
Parinda, Channatcha, Channitcha, Pramaporn, and Premmaporn