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Family name Undarmaa (Undarmaa
) , throughout the world, is a rare cognomen. The cognomen Undarmaa is habitual in Mongolia, where it is quite a common surname, Spain, where it is an extremely rare surname, and China. More prevalently, Undarmaa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Undarmaa | United Kingdom, United States, Spain, Mongolia, China |