Surname Stadniczuk (Stadniczuk 
) , globally, is a very rare family name. The cognomen Stadniczuk is habitual in Poland, where it is a rare surname, Germany, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. In absolute terms, this name is the most popular in Poland, Germany, and the United States. More prevalently, Stadniczuk is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Stadniczuk | United Kingdom, Poland, United States, Germany |