Surname Mleczko (Mleczko 
) , all around the world, is quite a rare last name. The last name Mleczko is habitual in Poland, where it is quite a rare surname, Ireland, where it is a rare surname, and New Zealand. Not in comparison with a country's population, it is commonest in Poland, the United States, and Germany. Likewise, Mleczko is the forename as well as the last name.
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| Mleczko | Germany, United Kingdom, United States, Poland, France |
| mikołaj mleczko z wieliczki PL (b. 1490) |
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| wojciech emeryk mleczko (b. 1625) |
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| wiktor konstanty mleczko (b. 1630) |
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onufry tadeusz mleczko (b. 1795) |
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franciszek mleczko UA (b. 1864) |
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| stanisław mleczko (b. 1851) |
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tadeusz mleczko Polish volleyball player, PL (b. 1939) |
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andrzej mleczko Polish satrist, PL (b. 1949) |
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| rudolf mleczko PL (b. 1898) |
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| franciszek mleczko PL (b. 1905) |
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radosław mleczko PL (b. 1959) |
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| piotr mleczko Polish artist, PL (b. 1919) |
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| zofia mleczko PL (b. 1918) |
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alina mleczko (b. 1969) |
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| franciszek mleczko Polish sociologist, university teacher and national administration employee, PL (b. 1931) |
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