Cognomen Walerij (Валерій 
, Walerij 
, فاليري 
) , all around the world, is a very rare family name. The family name Walerij is characteristic of Eastern Europe, particularly Poland, where it is a very rare surname, and Ukraine, where it is an extremely rare surname. Much more frequently, Walerij is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Валерій | Ukraine |
| Walerij | Russia, Poland, United States, Germany, Ukraine |
| فاليري | Iraq, Palestinian Territory |
| ვალერი | Georgia |
Valeri, Valerian, Valerianus, Valerii, Valerij, Valerio, Valeriu, Valerius, Valeriy, Valerjan, Valery, Valeryi, Valeryj, Valère, Valér, Valéri, Valéry, Valērijs, Waleri, Walerian, Waleriusz, Walery, Βαλέριος, Валер, Валера, Валери, Валериан, Валерий, Валерийс, Валерио, Валериу, Валериус, Валеры, Валерый, ואלרי, ולרי, ვალერიანი, and ヴァレリー