Family name Koncz (Koncz 
) , in all the world, is quite a common last name. The cognomen Koncz is characteristic of Eastern Europe, particularly Hungary, where it is quite a common surname, Slovakia, where it is quite a rare surname, and Romania. In absolute terms, it is commonest in Hungary, Romania, and the United States. Very seldom, Koncz is the forename as well as the last name.
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| Koncz | Germany, Slovakia, United States, Hungary, Romania |
| koncz boldizsár (b. 1624) |
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márton koncz SK (b. 1675) |
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| józsef koncz Hungarian historian (1829-1906), RO (b. 1829) |
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koncz jános Hungarian violinist, music pedagogue (1894-1937), HU (b. 1894) |
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| koncz aurélné karácson ottília Romanian teacher, RO (b. 1871) |
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koncz gábor Hungarian actor, HU (b. 1938) |
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koncz zsuzsa Hungarian singer, HU (b. 1946) |
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koncz istván (b. 1937) |
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koncz tibor HU (b. 1940) |
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| koncz istván Hungarian electrical engineer (1907-1978), HU (b. 1907) |
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| koncz tihamér Hungarian born Swiss civil engineer (1925-1997), HU (b. 1925) |
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koncz zsolt Hungarian association football player, HU (b. 1977) |
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koncz-münich andrás RO (b. 1969) |
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koncz andrea Hungarian actress, HU (b. 1986) |
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christoph koncz (1987-) classical violinist, AT (b. 1987) |
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