Surname Harnung (Harnung 
) , in all the world, is a very rare cognomen. The family name Harnung is habitual in Denmark, where it is a rare surname, the United States, where it is an extremely rare surname, and Germany. Also, Harnung is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Harnung | Denmark, United States, Indonesia, Germany, Brazil |