Surname Harbai (Harbai 
) , across the world, is a very rare last name. The cognomen Harbai is characteristic of Saudi Arabia, where it is a very rare surname, South Africa, and India, where it is an extremely rare surname. Predominantly, Harbai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Harbai | India, South Africa, Saudi Arabia, United States |