Cognomen Katthaworn (Katthaworn 
) , in all the world, is a very rare family name. The family name Katthaworn is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Katthaworn | Thailand |
Sarocha, Worapit, Tippawan, Teepakorn, and Pattharavadee