Cognomen Bhasavanija (Bhasavanija 
) , across the world, is an extremely rare family name. The cognomen Bhasavanija is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Bhasavanija | Thailand |
Tirata, Khajohn, Kridkanok, and Suchawadee