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Last name Kalbay (Калбай
, Калбаи
, Kalbay
) , across the world, is a rare family name. The cognomen Kalbay is habitual in Kyrgyzstan, where it is quite a rare surname, Russia, where it is a very rare surname, and Kazakhstan. More frequently, Kalbay is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Калбай | Kazakhstan, Russia, Kyrgyzstan, Azerbaijan, Ukraine |
| Калбаи, Калбаы | Russia |
| Kalbay | United Kingdom, India, Philippines |