Cognomen Котыл-Оглы (Котыл-Оглы 
) , in all the world, is a very rare family name. The last name Котыл-Оглы is characteristic of Kazakhstan, where it is a very rare surname, and Russia, where it is an extremely rare surname. Parts of the name also exists independently as a last name Оглы.
| VARIANT | COUNTRY |
|---|---|
| Котыл-Оглы | Russia, Kazakhstan |