Cognomen Ruayjaroensap (Ruayjaroensap 
) , all around the world, is a very rare family name. The last name Ruayjaroensap is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ruayjaroensap | Thailand |
| jumpoth ruayjaroensap (b. 1972) |
|