Cognomen Fassel (فاسيل 
, Fassel 
, פאסל 
) , worldwide, is quite a rare surname. The last name Fassel is habitual in France, where it is a rare surname, Austria, and Czechia. In absolute terms, it is the most numerous in France, the United States, and Germany. Much less frequently, Fassel is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| فاسيل | Iraq |
| Fassel | Germany, Austria, Egypt, United States, France |
| פאסל | Israel |
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werner fassel German SS non-commissioned officer, deputy leader of the political department in Mauthausen concentration camp (1910-1992), DE (b. 1910) |
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| robert fassel holocaust victim, b. 1894-03-02, CZ (b. 1894) |
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jim fassel American football head coach, US (b. 1949) |
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| otto fassel CZ (b. 1897) |
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| velmer a. fassel American chemist, US (b. 1919) |
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| fassel l’ousa ferenc HU (b. 1915) |
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| karel fassel AT (b. 1924) |
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| gerda fassel Austrian sculptor, AT (b. 1941) |
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| horst fassel German literary historian and translator (1942-2017), DE (b. 1942) |
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| alicia fassel (b. 1949) |
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| john fassel American football coach, US (b. 1974) |
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| pierre fassel animator |
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| preston fassel American horror author and journalist, US (b. 1985) |
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