Last name Haacker (Haacker 
) , worldwide, is a rare cognomen. The family name Haacker is habitual in Germany, where it is a rare surname, United Arab Emirates, and Ireland. In absolute terms, it most frequently occurs in Germany, the United States, and Argentina.
| VARIANT | COUNTRY |
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| Haacker | Brazil, Argentina, Germany, United Arab Emirates, United States |
| carl haacker German production designer (1890-1945), DE (b. 1890) |
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| klaus haacker German theologian, DE (b. 1942) |
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| sonja haacker DE (b. 1932) |
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| kathrin haacker East German rower, DE (b. 1967) |
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| markus haacker researcher |
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| erin m.k. haacker researcher ORCID ID = 0000-0003-4836-4113 |
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| christoph haacker (b. 1972) |
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| jürgen haacker |
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Mr, Gero, Geni, Leci, Lisa, Jack, Jose, Joan, Jena, Tali, Nico, Noel, Eloi, Eric, Erin, Hugo, Vera, Fred, Iris, Irma, Maria, Mandy, Doug, Maldo, Dora, Ryan, Ms, Amy, Kai, Dan, Jim, Tom, Nic, Ivo, Mark, Alan, Axel, Bert, Bill, Karl, Kurt, Paul, Pete, Poul, Raul, Rene, Rudi, Dean, and Sandy