Family name Koryshev (Корышев 
, Koryshev 
) , worldwide, is a rare cognomen. The surname Koryshev is characteristic of Russia, where it is a rare surname, Belarus, where it is a very rare surname, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Корышев | Kazakhstan, Russia, Belarus |
| Koryshev | Russia, Ukraine |