Family name Adanczyk (Adanczyk 
) , in the entire world, is a very rare last name. The family name Adanczyk is habitual in Poland, where it is a very rare surname, Argentina, and Canada, where it is an extremely rare surname. Not in comparison with a country's population, the name is most common in Poland, Argentina, and Brazil.
| VARIANT | COUNTRY |
|---|---|
| Adanczyk | Poland, Canada, Argentina, Brazil, United States |