Cognomen Отгон (Otgon 
, Отгон 
) , in the world, is quite a rare surname. The last name Отгон is characteristic of Mongolia, where it is quite a common surname, Moldova, and Macao, where it is quite a rare surname. Not in comparison with a country's population, it is commonest in Mongolia, Moldova, and Romania. Also, Отгон is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Otgon | Moldova, China, Macao, Romania, Mongolia |
| Отгон | Ukraine, Russia |