Last name Yajai (Yajai 
) , in the world, is a rare cognomen. The last name Yajai is characteristic of Thailand, where it is a rare surname, Malaysia, where it is a very rare surname, and Venezuela, where it is an extremely rare surname. Measured by absolute frequency, this name is the most popular in Thailand, India, and Malaysia. Likewise, Yajai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yajai | United States, Mexico, Thailand, Malaysia, India |