Last name Ruengsawat (Ruengsawat 
) , around the globe, is a rare surname. The cognomen Ruengsawat is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, Ruengsawat is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ruengsawat | Thailand |