Family name Коштыбаев (Коштыбаев 
) , worldwide, is a very rare last name. The last name Коштыбаев is characteristic of Central Asia, particularly Kazakhstan, where it is a rare surname. Very seldom, Коштыбаев is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Коштыбаев | Kazakhstan |