Last name Długołęcki (Długołęcki 
) , in the world, is a rare family name. The last name Długołęcki is habitual in Poland, where it is a rare surname, and Canada, where it is an extremely rare surname.
| VARIANT | COUNTRY |
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| Długołęcki | Poland, Canada |
| stefan długołęcki Polish officer (1906-1948), PL (b. 1906) |
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| marian długołęcki Polish officer, PL (b. 1911) |
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| ryszard długołęcki PL (b. 1933) |
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| mateusz długołęcki Polish footballer, PL (b. 1993) |
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Adam, Tomasz, Mariusz, Mateusz, Michał, Andrzej, Przemek, Piotrek, Leszek, Ryszard, Zbyszek, Łukasz, Krystian, Grzegorz, Wojciech, Sebastian, Arkadiusz, Dariusz, Daniel, Robert, Patryk, Artur, Karol, Kamil, Paweł, Piotr, Radek, Rafał, David, Dawid, Jacek, Jakub, Marcin, Maciej, Szymon, Adrian, Kacper, Konrad, Krzysztof, and Aleksander