Family name Haarder (Harder 
, Haarder 
) , throughout the world, is a common surname. The surname Haarder is habitual in Denmark, where it is quite a common surname, Paraguay, and Germany (explore the name in all countries). Not in comparison with a country's population, it most frequently occurs in Germany, the United States, and Canada. Very seldom, Haarder is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Harder | Germany, Philippines, Paraguay, United States, Canada |
| Haarder | Denmark, South Africa |
| s haarder researcher |
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| eline b. haarder researcher, ORCID id # 0000-0003-1396-3634 |
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| anders haarder Danish guitarist and keyboardist |
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