Cognomen Sonderkamp (Sonderkamp 
) , all over the world, is a rare surname. The family name Sonderkamp is habitual in Western Europe, particularly Germany, where it is a rare surname, Netherlands, and Belgium, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Germany, Netherlands, and Spain.
| VARIANT | COUNTRY |
|---|---|
| Sonderkamp | Germany, Belgium, Spain, Canada, Netherlands |
| rolf sonderkamp German non-fiction author, DE (b. 1952) |
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