Family name Розенблиум (Розенблиум 
) , throughout the world, is an extremely rare cognomen. The cognomen Розенблиум is characteristic of Eastern Europe, particularly Russia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Розенблиум | Russia |
Rozenblioum, Rozenblium, and Rozenblyum