Cognomen Dufner (Dufner 
) , in the entire world, is quite a rare last name. The family name Dufner is characteristic of Germany, where it is quite a rare surname, Switzerland, and Hungary, where it is a rare surname. In absolute terms, it is the most numerous in Germany, the United States, and Switzerland.
| VARIANT | COUNTRY |
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| Dufner | Germany, Hungary, France, United States, Switzerland |
| franz joseph dufner DE (b. 1816) |
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| edward dufner American painter (1871-1957), US (b. 1871) |
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delores dufner composer, US (b. 1939) |
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| francis dufner victim of the COVID-19 pandemic: He enjoyed telling stories and spending time at the Shore, US (b. 1923) |
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| wolfram dufner German author, DE (b. 1926) |
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| georg dufner (b. 1916) |
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jason dufner American professional golfer, US (b. 1977) |
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| brigitte dufner (b. 1939) |
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| meinrad dufner (b. 1946) |
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| dirk dufner German lawyer, DE (b. 1968) |
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| karin dufner (b. 1962) |
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| annette dufner researcher |
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| jens dufner DE (b. 1971) |
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| georg dufner (b. 1978) |
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| marco dufner DE |
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