Throughout the world, สมายล์ (Samai 
, สมายล์ ) is a common dominantly masculine, but infrequently feminine given name. The first name สมายล์ is characteristic of Algeria, where it is quite a rare gender-neutral name, India, where it is a rare largely male, but infrequently female name, and Morocco, where it is a rare dominantly girly, but uncommonly masculine name. Measured by absolute frequency, it is the most numerous in India, Algeria, and Mexico. Likewise, สมายล์ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Samai | Thailand, Sierra Leone, Laos, India, Algeria |
| สมายล์ | Thailand |