Cognomen Lasiewicz (Lasiewicz 
) , in the entire world, is a rare surname. The surname Lasiewicz is characteristic of Poland, where it is a rare surname, the United States, where it is a very rare surname, and France, where it is an extremely rare surname. Also, Lasiewicz is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lasiewicz | Germany, France, Poland, United Kingdom, United States |