Surname Lopachuk (Lopachuk 
) , across the world, is a very rare cognomen. The last name Lopachuk is characteristic of Belarus, where it is a rare surname, Canada, where it is an extremely rare surname, and the United States. Not in comparison with a country's population, this name is the most popular in Belarus, the United States, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Lopachuk | Ukraine, Canada, Belarus, Russia, United States |
| stanislav lopachuk Belarusian ice hockey player, BY (b. 1992) |
|