Cognomen Prasittiwech (Prasittiwech 
) , all over the world, is an extremely rare family name. The family name Prasittiwech is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Likewise, Prasittiwech is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Prasittiwech | Thailand |