Last name Буянхишиг (Buyankhishig 
, Буянхишиг 
) , in all the world, is a rare family name. The family name Буянхишиг is habitual in Mongolia, where it is quite a common surname, Malaysia, where it is a very rare surname, and the United States, where it is an extremely rare surname. Likewise, Буянхишиг is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Buyankhishig | Hungary, Australia, United States, Malaysia, Mongolia |
| Буянхишиг | Russia |