Throughout the world, สุวิลัย (สุวิลัย 
) is a very rare gender-neutral first name. The given name สุวิลัย is habitual in South-eastern Asia, particularly Thailand, where it is a rare epicene name. Much less frequently, สุวิลัย is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| สุวิลัย | Thailand |