Cognomen Szydziak (Szydziak 
) , in all the world, is a rare family name. The cognomen Szydziak is characteristic of Poland, where it is a rare surname, Canada, where it is a very rare surname, and Germany, where it is an extremely rare surname. Not in comparison with a country's population, this name is the most popular in Poland, the United States, and Germany. Likewise, Szydziak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Szydziak | Poland, France, Canada, United States, Germany |