Family name Bartoszczuk (Bartoszczuk 
) , all over the world, is a very rare cognomen. The cognomen Bartoszczuk is habitual in Poland, where it is a rare surname, and Germany, where it is an extremely rare surname. Likewise, Bartoszczuk is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bartoszczuk | Germany, Poland |