Last name Loeffel (Loeffel 
) , throughout the world, is quite a rare surname. The cognomen Loeffel is habitual in Western Europe, particularly Switzerland, where it is quite a rare surname, France, where it is a rare surname, and Germany. Not in comparison with a country's population, it is the most numerous in the United States, Germany, and France. Much less frequently, Loeffel is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Loeffel | Germany, Switzerland, United States, Argentina, France |
| felix loeffel Swiss opera singer (1892-1981), CH (b. 1892) |
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| william j. loeffel US (b. 1894) |
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| hans loeffel (b. 1929) |
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romain loeffel Swiss ice hockey player, CH (b. 1991) |
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| laurence loeffel FR (b. 1959) |
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| hans loeffel Dr. math. ETH Zürich 1956 |
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| rob loeffel college basketball player (1986–1989) New Mexico |
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