Surname Gackowski (Gackowski 
) , across the world, is quite a rare cognomen. The cognomen Gackowski is habitual in Poland, where it is quite a rare surname, Ireland, where it is a rare surname, and Germany. In absolute terms, it most frequently occurs in Poland, Germany, and the United States. Likewise, Gackowski is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Gackowski | Germany, United Kingdom, United States, Poland, France |
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piotr gackowski Polish programmer, Wikimedian, PL (b. 1981) |
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| zbigniew gackowski PL (b. 1929) |
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| andrzej gackowski Polish cardiologist, PL |
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| marcin gackowski researcher (ORCID 0000-0001-9176-7108) |
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| mariusz gackowski researcher |
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| roman gackowski director and filmmaker |
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| daniel gackowski researcher, PL |
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