Cognomen Niewiedzial (Niewiedzial 
) , globally, is a rare family name. The cognomen Niewiedzial is characteristic of Poland, where it is a rare surname, Germany, where it is a very rare surname, and the United States, where it is an extremely rare surname. Likewise, Niewiedzial is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Niewiedzial | Poland, United Kingdom, Germany, United States |