Cognomen Kaffsack (Kaffsack 
) , globally, is a very rare family name. The surname Kaffsack is habitual in Western Europe, particularly Germany, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kaffsack | Germany |
|
joseph kaffsack German sculptor, DE (b. 1850) |
|
Mr, Sven, Paul, Jörg, Wilhelm, Wolfgang, Dagmar-Gabriele, Sven Friedrich, Karl-Heinz, and Karl-Friedrich