Cognomen Keiffer (Keiffer 
) , across the world, is quite a rare surname. The family name Keiffer is habitual in Luxembourg, where it is quite a rare surname, the United States, where it is a rare surname, and France. Much less frequently, Keiffer is the forename as well as the last name.
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| Keiffer | Philippines, Luxembourg, France, United States, Germany |
| chrysostome keiffer Luxembourgish politician (1803-1881), LU (b. 1803) |
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auguste keiffer (1889-1935), LU (b. 1889) |
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| jules keiffer Luxembourgish politician (1853-1938), LU (b. 1853) |
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keiffer hubbell ice dancer, US (b. 1989) |
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| ann keiffer (b. 1945) |
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| lisa keiffer American reality television participant, US (b. 1960) |
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| joseph keiffer (b. 1952) |
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| timothy r keiffer researcher |
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| dennis keiffer American actor, US |
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