Steinhoff is a German surname. Notable people with the surname include:
Bruno Steinhoff (born 1937), German billionaire businessman, founder of Steinhoff International Ernst Steinhoff (1908-1987), German rocket scientist Fritz Steinhoff (1897-1969), German politician Gerda Steinhoff (1922-1946), Nazi SS concentration camp overseer hanged for war crimes Hans Steinhoff (1882-1945), German film director Johannes Steinhoff (1913-1994), German Luftwaffe pilot John Steinhoff (born 1942), classical physicist Karl Steinhoff (1892-1981), Minister-President of Brandenburg Kathy Steinhoff, member of the Missouri House of Representatives from the 45th district
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