Surname Bua-In (Bua-In 
) , in the world, is an extremely rare last name. The family name Bua-In is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Parts of the name also exists independently as a last name Bua, and a last name In.
| VARIANT | COUNTRY |
|---|---|
| Bua-In | Thailand |