Family name Jainai (Jainai 
) , in all the world, is a very rare surname. The last name Jainai is habitual in Malaysia, where it is a very rare surname, Philippines, where it is an extremely rare surname, and India. Likewise, Jainai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jainai | Malaysia, United States, Philippines, India |