Hopf is a German surname. Notable people with the surname include:
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Eberhard Hopf (1902–1983), Austrian mathematician
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Hans Hopf (1916–1993), German tenor
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Heinz Hopf (1894–1971), German mathematician
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Heinz Hopf (actor) (1934–2001), Swedish actor
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Ludwig Hopf (1884–1939), German physicist
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Maria Hopf (1914-2008), German botanist and archaeologist
