Cognomen Каадыр-Оол (Каадыр-Оол 
) , throughout the world, is an extremely rare family name. Much more prevalently, Каадыр-Оол is the forename as well as the last name. Parts of the name also exists independently as a first name Каадыр, and a first name Оол.
| VARIANT | COUNTRY |
|---|---|
| Каадыр-Оол | Russia |