Surname Dufek (Dufek 
) , in the entire world, is quite a rare cognomen. The cognomen Dufek is habitual in Czechia, where it is quite a common surname, Slovakia, where it is quite a rare surname, and Austria. Not in comparison with a country's population, this name is the most popular in Czechia, the United States, and Slovakia. Much less frequently, Dufek is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Dufek | Austria, Germany, Slovakia, Czechia, United States |
| jan dufek CZ (b. 1837) |
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george j. dufek United States admiral (1903-1977), US (b. 1903) |
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antonín dufek Czechoslovak association football player (1913-1983), CZ (b. 1913) |
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| josef dufek CZ (b. 1858) |
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| václav maria dufek (b. 1859) |
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don dufek, sr. American football player, college athletics administrator (1929-2014), US (b. 1929) |
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| emil dufek CZ (b. 1877) |
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| rudolf dufek (b. 1882) |
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| rudolf dufek (b. 1882) |
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| josef dufek Czechoslovak member of Czechoslovak national parliament and Czechoslovak politician, CZ (b. 1896) |
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don dufek American football player, US (b. 1954) |
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| josef dufek Czechoslovak teacher, CZ (b. 1905) |
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| josef dufek (b. 1895) |
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| václav dufek (b. 1898) |
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| adalbert dufek AT (b. 1901) |
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