Family name Krutaya (Крутая 
, Krutaya 
) , in the world, is a rare cognomen. The cognomen Krutaya is characteristic of Belarus, where it is a rare surname, Russia, and Kazakhstan, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Крутая | Kazakhstan, Russia, Ukraine, Belarus |
| Krutaya | Russia, United States |