All over the world, วิไทย (วิไทย 
) is a very rare largely male, but seldom girly first name. The first name วิไทย is habitual in South-eastern Asia, particularly Thailand, where it is a very rare mostly boy's, but seldom female name.
| VARIANT | COUNTRY |
|---|---|
| วิไทย | Thailand |
ศิริ, and พรหมธีระวงศ์