Cognomen Jainual (Jainual 
) , all over the world, is a very rare last name. The surname Jainual is habitual in Thailand, where it is a very rare surname, and India, where it is an extremely rare surname. Likewise, Jainual is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jainual | Thailand, India |