Family name Roepnack (Roepnack 
) , in the entire world, is a very rare last name. The last name Roepnack is habitual in Germany, where it is a very rare surname, New Zealand, and the United States, where it is an extremely rare surname. In absolute terms, it is the most numerous in Germany, the United States, and Brazil.
| VARIANT | COUNTRY |
|---|---|
| Roepnack | Brazil, New Zealand, United States, Germany, Venezuela |