Family name Otgoo (Otgoo 
) , throughout the world, is quite a rare surname. The last name Otgoo is characteristic of Mongolia, where it is quite a common surname, China, where it is an extremely rare surname, and the United States. Likewise, Otgoo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Otgoo | Mongolia, United Kingdom, United States, China |