Family name Affeldt (Affeldt 
) , globally, is quite a rare surname. The last name Affeldt is characteristic of Germany, where it is quite a rare surname, Brazil, where it is a rare surname, and Poland. Measured by absolute frequency, it is the most numerous in Germany, the United States, and Brazil. Very seldom, Affeldt is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Affeldt | Germany, United States, Poland, Canada, Brazil |
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jeremy affeldt Baseball pitcher, US (b. 1979) |
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| paul affeldt American author, US (b. 1931) |
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| werner affeldt (b. 1928) |
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| rolf affeldt (b. 1949) |
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| doris affeldt (b. 1958) |
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| jim affeldt college basketball player (1963–1963) Notre Dame |
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| leland a. affeldt, sr. American politician – Minnesota -House 1955-58 (District 66), US |
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| ricardo f affeldt researcher |
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| dieter affeldt |
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| elisabeth affeldt |
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| séverine affeldt researcher |
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