Surname Khapai (Khapai 
, Хапай 
) , globally, is a rare family name. The surname Khapai is characteristic of Kazakhstan, where it is a very rare surname, Thailand, and Russia. Not in comparison with a country's population, the name is most common in India, Russia, and Thailand. Much less frequently, Khapai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Khapai | India, South Africa, Thailand, Russia |
| Хапай | Kazakhstan, Russia |