Cognomen Filz (Fils 
, Filius 
, Filc 
) , throughout the world, is a common family name. The family name Filz is habitual in Cameroon, where it is quite a common surname, Martinique, and Haiti. Measured by absolute frequency, it is commonest in Cameroon, Haiti, and France. Also, Filz is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Fils | Germany, France, Democratic Republic of the Congo, Haiti, Cameroon |
| Filius, Filz | Belgium, Netherlands, Germany, France, United States |
| Filc | Germany, France, United States, Poland, Brazil |
| michael filz German historian (1777-1854), DE (b. 1777) |
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| joseph filz American politician, US (b. 1848) |
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| william filz US (b. 1845) |
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| wilhelmina filz Dutch Righteous Among the Nations, NL (b. 1915) |
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| friedrieke filz Austrian fencer, AT (b. 1927) |
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| walter filz German journalist, DE (b. 1959) |
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| roland filz French politician, FR (b. 1963) |
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| richard filz Austrian writer, AT (b. 1967) |
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| willi filz BE (b. 1962) |
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| mona filz DE (b. 1964) |
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| göran filz |
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| melissa filz AU (b. 1987) |
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