Family name Bronsztejn (Bronsztejn 
) , around the world, is a very rare last name. The last name Bronsztejn is habitual in Switzerland, where it is a very rare surname, France, and Argentina, where it is an extremely rare surname. Measured by absolute frequency, it is the most numerous in China, France, and Switzerland.
| VARIANT | COUNTRY |
|---|---|
| Bronsztejn | China, Switzerland, United States, Argentina, France |