Cognomen Gerelmaa (Gerelmaa 
) , in all the world, is a rare surname. The family name Gerelmaa is characteristic of Mongolia, where it is quite a common surname, Isle of Man, where it is quite a rare surname, and the United States, where it is an extremely rare surname. Not in comparison with a country's population, it most frequently occurs in Mongolia, China, and Isle of Man. More prevalently, Gerelmaa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gerelmaa | China, Mongolia, Italy, United States, South Korea |