All over the world, Koshbay (Кошбай 
, Кошбаи , Koshbay) is a rare male forename. The first name Koshbay is characteristic of Central Asia, particularly Kyrgyzstan, where it is quite a rare boy's name, and Kazakhstan, where it is a rare boy's name. Likewise, Koshbay is the last name as well as the forename.