Last name Kovalchuk (Ковальчук 
, Kovalchuk 
, Ковалчук ) , all over the world, is a widespread surname. The cognomen Kovalchuk is characteristic of Ukraine, where it is a common surname, Belarus, and British Virgin Islands, where it is quite a common surname (explore the name in all countries). Measured by absolute frequency, it most frequently occurs in Eastern Europe, particularly Ukraine, Russia, and Belarus.
| VARIANT | COUNTRY |
|---|---|
| Ковальчук | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Kovalchuk | Russia, Poland, United States, Belarus, Ukraine |
| Ковалчук | Russia, Ukraine |
| fedor kovalchuk Ukrainian Righteous Among the Nations, UA (b. 1906) |
|
|
| maria kovalchuk Ukrainian Righteous Among the Nations, UA (b. 1912) |
|
|
| leonid kovalchuk Ukrainian Righteous Among the Nations, UA (b. 1922) |
|
|
|
olga kovalchuk Ukrainian Paralympic sport shooter (b. 1976) |
|
| anastasia kovalchuk Ukrainian Righteous Among the Nations, UA (b. 1927) |
|
|
| sofia kovalchuk Belarusian Righteous Among the Nations, BY (b. 1932) |
|
|
| volodymyr kovalchuk PL (b. 1941) |
|
|
| vladimir aleksanderovich kovalchuk RU (b. 1951) |
|
|
| oleg kovalchuk (b. 1956) |
|
|
| vasylyna kovalchuk researcher (ORCID 0000-0002-7199-524X) |
|
|
| sergey kovalchuk researcher ORCID 0000-0001-8828-4615 |
|
|
| andrei nikolaevich kovalchuk Ph.D. Belorussian State University 2004 |
|
|
| d g kovalchuk researcher |
|
|
| maria kovalchuk researcher |
|
|
| volodymyr i. kovalchuk researcher |
|