Family name Ковалиов (Ковалиов 
, Kovaliov 
) , around the world, is a rare cognomen. The surname Ковалиов is characteristic of Lithuania, where it is quite a common surname, Latvia, where it is quite a rare surname, and Belarus, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ковалиов | Russia |
| Kovaliov | Spain, Belarus, United States, Latvia, Lithuania |