Cognomen Osadczuk (Osadczuk 
) , all around the world, is a rare family name. The last name Osadczuk is characteristic of Poland, where it is a rare surname, Canada, and Australia, where it is a very rare surname. In absolute terms, it is the most numerous in Poland, Brazil, and Canada. Also, Osadczuk is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Osadczuk | Germany, United States, Poland, Canada, Brazil |
|
bohdan osadczuk Ukrainian historian, DE (b. 1920) |
|
| matías osadczuk Argentine rugby union player, AR (b. 1997) |
|