Surname Bielack (Bielack 
) , all over the world, is a rare family name. The cognomen Bielack is characteristic of Germany, where it is a rare surname, the United Kingdom, where it is an extremely rare surname, and Brazil. In absolute terms, it most frequently occurs in Germany, the United Kingdom, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Bielack | Brazil, Germany, United States, United Kingdom |
| stefan bielack researcher (ORCID 0000-0003-2144-3153) |
|