Surname Ousyk (Ousyk, Усык 
) , worldwide, is a very rare family name. The cognomen Ousyk is habitual in Kyrgyzstan, where it is a rare surname, Russia, where it is a very rare surname, and Ukraine, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Усык | Kyrgyzstan, Russia, Ukraine |