Family name Jainarain (Jainarain 
) , all over the world, is a rare surname. The surname Jainarain is characteristic of Guyana, where it is a rare surname, South Africa, and Netherlands, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in South Africa, the United States, and India. Likewise, Jainarain is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jainarain | Guyana, Canada, South Africa, India, United States |