Globally, สมใส (Somsai 
, สมใส , Soomsai ) is a very rare unisex given name. The forename สมใส is habitual in Thailand, where it is a very rare largely girly, but seldom boy's name, and India, where it is an extremely rare masculine name. Also, สมใส is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Somsai | Laos, Thailand, United States, India, Myanmar |
| สมใส | Thailand |
| Soomsai | Myanmar, Thailand |