Surname Knackfuß (Knackfuß 
) , throughout the world, is a rare family name. The surname Knackfuß is habitual in Western Europe, particularly Germany, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Knackfuß | Germany |
| friedrich ludwig karl knackfuß DE (b. 1772) |
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hermann knackfuß German painter and writer on art (1848-1915), DE (b. 1848) |
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| hubert knackfuß German architectural historian, DE (b. 1866) |
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| ulrich knackfuß German navy officer and WWII submarine commander, DE (b. 1920) |
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