'''Diederichs''' is a German surname. Notable people with the surname include:
*Eugen Diederichs (1867–1930), German publisher *Georg Diederichs (1900–1983), German politician *Klaus Diederichs, English banker *Nico Diederichs (1903–1978), South African politician *Otto von Diederichs (1843–1918), Imperial German Navy admiral
==See also== *Helene Voigt-Diederichs (1875–1961), German writer *Diederich
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Category:German-language surnames