Steinhoff is a German surname. Notable people with the surname include:
Ernst Steinhoff (1908-1987), German rocket scientist
Gerda Steinhoff (1922-1946), Nazi concentration camp overseer
Hans Steinhoff, German film director
Johannes Steinhoff (1913-1994), German Luftwaffe pilot
John Steinhoff (born 1942), classical physicist
Karl Steinhoff (1892-1981), Minister-President of Brandenburg