Cognomen Santiwatthanasiri (Santiwatthanasiri 
) , in the world, is a very rare family name. The family name Santiwatthanasiri is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, Santiwatthanasiri is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Santiwatthanasiri | Thailand |