Last name Łęcki (Łęcki 
) , in the entire world, is a rare cognomen. The cognomen Łęcki is habitual in Poland, where it is quite a rare surname, and the United States, where it is an extremely rare surname.
| kazimierz łęcki PL (b. 1825) |
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tadeusz łęcki Polish officer (1917-1998), PL (b. 1917) |
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włodzimierz łęcki politician, PL (b. 1937) |
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wojciech łęcki PL (b. 1948) |
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| stanisław łęcki (b. 1941) |
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| krzysztof łęcki PL (b. 1960) |
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| paweł łęcki Polish speedway rider, PL (b. 1976) |
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| stanisław łęcki PL |
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Jan, Damian, Janusz, Tomasz, Mariusz, Mateusz, Michał, Andrzej, Bartosz, Dariusz, Dominik, Tadeusz, Wiesław, Łukasz, Mikołaj, Sławomir, Radosław, Grzegorz, Jarosław, Wojciech, Zbigniew, Sebastian, Daniel, Robert, Konrad, Kacper, Marek, Artur, Karol, Kamil, Paweł, Piotr, Rafał, Dawid, Jacek, Jasio, Krzysztof, Jakub, Filip, Oskar, Marcin, Maciej, Maciek, Szymon, Aleksy, Antoni, Adrian, Bogdan, Jerzy, and Włodzimierz