Family name Gruenzweig (Gruenzweig 
) , in the entire world, is a rare cognomen. The last name Gruenzweig is habitual in Austria, where it is a rare surname, Germany, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Gruenzweig | Austria, United States, Germany |
| karl gruenzweig |
|