Cognomen Ерстэм (Erstem 
, Ерстэм 
) , around the globe, is a very rare family name. The surname Ерстэм is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. More frequently, Ерстэм is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Erstem | China |
| Ерстэм | Russia |