Family name Borubaev (Borubaev 
) , in the world, is a very rare surname. The cognomen Borubaev is habitual in Switzerland, where it is a very rare surname, Kyrgyzstan, and Russia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Borubaev | Kyrgyzstan, Switzerland, Russia, United States |