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Cognomen Łach (Lahhan , Łach ) , all over the world, is quite a rare last name. The cognomen Łach is habitual in Poland, where it is quite a rare surname, the United Kingdom, where it is an extremely rare surname, and the United States.
Jan, Piotr, Radek, Rafał, Darek, Dawid, Diana, Jacek, Jarek, Jakub, Jerzy, Julia, Julka, Tomek, Edyta, Filip, Irena, Iwona, Marian, Marcel, Marcin, Maciej, Paweł, Kasia, Kamil, Karol, Emi, Ewa, Ola, Ula, Sara, Anna, Ania, Arek, Adam, Kuba, Maciek, Olga, Maria, Marta, Marek, Magda, Antek, Aneta, Artur, Agata, Basia, Beata, Olek, and Monika