Family name Barshtein (Barshtein 
, Барштейн 
) , in the entire world, is a very rare cognomen. The surname Barshtein is habitual in Russia, where it is a very rare surname, Ukraine, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Barshtein | United States |
| Барштейн | Russia, Ukraine |
| gregory barshtein researcher (ORCID 0000-0001-6588-7229) |
|