Family name Куянбаев (Куянбаев 
) , globally, is a very rare surname. The surname Куянбаев is characteristic of Kazakhstan, where it is a rare surname, and Russia, where it is a very rare surname. Much less frequently, Куянбаев is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Куянбаев | Russia, Kazakhstan |