Family name Czarnobaj (Czarnobaj 
) , all around the world, is a rare cognomen. The cognomen Czarnobaj is habitual in Poland, where it is a rare surname, the United Kingdom, where it is a very rare surname, and Brazil. Likewise, Czarnobaj is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Czarnobaj | United Kingdom, Philippines, United States, Poland, Brazil |
|
leszek czarnobaj Polish politician, PL (b. 1956) |
|
| jarosław czarnobaj Polish journalist, PL (b. 1933) |
|
|
| katarzyna czarnobaj researcher, PL |
|