Surname Laciuk (Laciuk 
) , all over the world, is a very rare last name. The cognomen Laciuk is characteristic of Austria, where it is a rare surname, Brazil, where it is an extremely rare surname, and Canada. Also, Laciuk is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Laciuk | Austria, Canada, Brazil, Poland |