Last name Bayarnyam (Bayarnyam 
) , around the world, is an extremely rare family name. The family name Bayarnyam is habitual in Northern America, particularly the United States, where it is an extremely rare surname. Much more prevalently, Bayarnyam is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bayarnyam | Mongolia, United States |