Cognomen Матсюк (Матсюк 
, Matsjuk 
, Matsiuk 
) , all over the world, is a rare last name. The last name Матсюк is characteristic of Estonia, where it is a rare surname, Belarus, and Bulgaria. In absolute terms, it is the most numerous in Russia, Poland, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Матсюк | Belarus, Russia |
| Matsjuk | Estonia |
| Matsiuk | Russia, Belarus, Ukraine, United States, Poland |
| Matsyuk | Russia, Bulgaria, Belarus, Ukraine, United States |