Family name Кушбаев (Кушбаев 
) , all around the world, is a rare last name. The surname Кушбаев is habitual in Azerbaijan, where it is quite a rare surname, Kyrgyzstan, where it is a rare surname, and Kazakhstan. In absolute terms, this name is the most popular in Kazakhstan, Azerbaijan, and Russia. Much less frequently, Кушбаев is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Кушбаев | Kazakhstan, Azerbaijan, Russia, Kyrgyzstan |