Around the globe, สีไว (สีไว 
, Sivai 
) is a rare gender-neutral first name. The given name สีไว is characteristic of Thailand, where it is a rare unisex name, and India, where it is a very rare gender-neutral name. Much less frequently, สีไว is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| สีไว | Thailand |
| Sivai | South Africa, Canada, Thailand, United States, India |