Surname Kovalskij (Kovalskij, Ковальски 
) , around the globe, is a very rare last name. The surname Kovalskij is habitual in Kyrgyzstan, where it is a very rare surname, Kazakhstan, and Russia. In absolute terms, it is commonest in Russia, Ukraine, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Ковальски | Kyrgyzstan, Kazakhstan, Russia, Ukraine |