Cognomen Sinsasai (Sinsasai 
) , across the world, is a very rare surname. The family name Sinsasai is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sinsasai | Thailand |
Chitlada, Teerawit, Patcharporn, and Patcharaporn