Family name Бланкенбург (Blankenburg 
, Бланкенбург 
, Blanckenburg 
) , across the world, is quite a rare surname. The last name Бланкенбург is characteristic of Germany, where it is quite a rare surname, Netherlands, where it is a rare surname, and the United States. In absolute terms, it is the most numerous in Germany, the United States, and Brazil.
| VARIANT | COUNTRY |
|---|---|
| Blankenburg | Brazil, Netherlands, China, United States, Germany |
| Бланкенбург | Russia, Ukraine |
| Blanckenburg | Brazil, Netherlands, South Africa, United States, Germany |