Surname Stajn (Stajn 
, Стайн 
) , around the world, is a very rare cognomen. The surname Stajn is habitual in Argentina, where it is a very rare surname, Russia, where it is an extremely rare surname, and Ukraine. Not in comparison with a country's population, it most frequently occurs in Russia, Argentina, and Germany.
| VARIANT | COUNTRY |
|---|---|
| Stajn | Germany, Argentina, Brazil, United States |
| Стайн | Russia, Ukraine |