Family name Дончи-Оол (Дончи-Оол 
) , in the world, is an extremely rare cognomen. The last name Дончи-Оол is characteristic of Eastern Europe, particularly Russia, where it is an extremely rare surname. Parts of the name also exists independently as a last name Дончи, and a first name Оол.
| VARIANT | COUNTRY |
|---|---|
| Дончи-Оол | Russia |