Family name Lkhagvajav (Lkhagvajav 
) , around the world, is quite a rare last name. The family name Lkhagvajav is habitual in Mongolia, where it is quite a common surname, Australia, where it is a very rare surname, and Netherlands. Measured by absolute frequency, it is the most numerous in Mongolia, China, and the United States. Much less frequently, Lkhagvajav is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lkhagvajav | China, Spain, Australia, United States, Mongolia |