'''Frerichs''' is a surname. It may refer to:
*Courtney Frerichs (born 1993), American middle-distance runner specializing in steeplechase *Dieter Frerichs, director for two of the K1 funds a British Virgin Islands based hedge fund that collapsed *Don Frerichs (1931–2019), American businessman and politician *Friedrich Theodor von Frerichs (1819–1885), German pathologist *Gerret Frerichs, German record producer of the trance group/solo project Humate *Jan Frerichs (born 1973), German theologian, author and spiritual teacher *Jason Frerichs (born 1984), American politician, state senator from South Dakota *Mark Frerichs (born 1962), American civil engineer and former US Navy diver who disappeared in Afghanistan *Mike Frerichs (born 1973), American politician, State Treasurer of Illinois *Ralph R. Frerichs (born 1942), American epidemiologist *Rembrandt Frerichs (born 1977), Dutch pianist and composer
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