Family name Mackus (Mackus 
) , throughout the world, is a rare surname. The last name Mackus is habitual in Lithuania, where it is quite a rare surname, Latvia, where it is a rare surname, and Netherlands. Not in comparison with a country's population, this name is the most popular in Germany, the United States, and Lithuania. Much less frequently, Mackus is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Mackus | Netherlands, Poland, Lithuania, Germany, United States |
| adam mackus Polish officer, PL (b. 1902) |
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| algimantas mackus Lithuanian poet (1932-1964), LT (b. 1932) |
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| adriaan mackus Researcher |
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| adriaan mackus researcher |
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| hubert mackus NL (b. 1978) |
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| liene mackus (b. 1984) |
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Mr, Elke, Eric, Erik, Wiel, Maria, Manja, Maija, Molly, Sarah, Adina, Adrie, Ausma, Chuck, Chris, Carol, Craig, Betty, Bruce, Karen, Peter, David, Nely, Domas, June, John, Ms, Tim, Eva, Ian, Mary, Mark, Mike, Sara, Sven, Aiko, Boyd, Karl, Paul, Ruth, Ryan, Doug, Lana, Leah, Jane, Jose, Josh, Jens, and Lidia