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