In all the world, สินทัย (สินทัย 
, Sinthai 
) is a very rare unisex given name. The first name สินทัย is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare gender-neutral name. Very seldom, สินทัย is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| สินทัย | Thailand |
| Sinthai | India, United States, Thailand |