Surname Debreczeni (Debreczeni 
) , in all the world, is quite a rare cognomen. The cognomen Debreczeni is habitual in Hungary, where it is quite a common surname, Romania, where it is quite a rare surname, and Australia, where it is a rare surname. Not in comparison with a country's population, it is the most numerous in Hungary, Romania, and the United States. Very seldom, Debreczeni is the forename as well as the last name.
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| Debreczeni | Germany, Romania, Australia, Hungary, United States |
| debreczeni tánczos jános (b. 1501) |
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| debreczeni s. jános Hungarian poet, HU (b. 1550) |
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| debreczeni taraczk jános (b. 1550) |
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| debreczeni joó jános HU (b. 1550) |
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| jános debreczeni (b. 1601) |
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| debreczeni péter HU (b. 1608) |
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| debreczeni kalocsa jános HU (b. 1632) |
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| debreczeni fóris istván HU (b. 1650) |
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debreczeni márton Hungarian poet (1802-1851), HU (b. 1802) |
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debreczeni istván Hungarian priest, literary historian (1887-1973), HU (b. 1887) |
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| debreczeni józsef Hungarian teacher, RO (b. 1844) |
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| debreczeni jános HU (b. 1836) |
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debreczeni lászló Hungarian physician, HU (b. 1934) |
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| klára debreczeni Hungarian Righteous Among the Nations, HU (b. 1904) |
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debreczeni józsef Hungarian politician, HU (b. 1955) |
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