Last name Gwizdz (Gwizdz 
) , worldwide, is a rare family name. The last name Gwizdz is habitual in Poland, where it is quite a rare surname, Ireland, where it is a rare surname, and France, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Poland, the United States, and France. More frequently, Gwizdz is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gwizdz | Germany, France, Poland, United Kingdom, United States |