Family name Bunnai (Bunnai 
) , in the world, is an extremely rare surname. The family name Bunnai is characteristic of Southern Asia, particularly India, where it is an extremely rare surname. Much more prevalently, Bunnai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bunnai | Thailand, India, United States, Japan |
Nan, Srikulsasithorn, and Khotchomphu