Cognomen Łasak (Łasak 
) , in the entire world, is a rare family name. The surname Łasak is characteristic of Eastern Europe, particularly Poland, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Łasak | Poland |
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gustaw łasak Polish officer, PL (b. 1940) |
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| henryk łasak Polish sportsperson (1932-1973), PL (b. 1932) |
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olga łasak Polish comedian, PL (b. 1988) |
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Anna, Krzysztof, Katarzyna, Magdalena, Grzegorz, Dominika, Norbert, Dagmara, Klaudia, Michał, Mateusz, Halina, Tomasz, Janusz, Leszek, Damian, Robert, Patryk, Olga, Maria, Marta, Artur, Agata, Beata, Elżbieta, Kamil, Paweł, Piotr, Marcin, Maciek, Monika, Szymon, Kasia, and Aleksandra