Surname Shtain (Shtain 
, Штайн 
) , all over the world, is a rare cognomen. The last name Shtain is habitual in Kazakhstan, where it is a rare surname, Ukraine, and Israel. Not in comparison with a country's population, this name is the most popular in Russia, Ukraine, and Kazakhstan. Much less frequently, Shtain is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Shtain | Kazakhstan, Russia, Georgia, Canada, Israel |
| Штайн | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |