Quandt is a surname. In particular, it may refer to members of the notable Quandt family:Günther Quandt (1881–1954), German industrialist, founded an industrial empire that includes BMW and Altana Harald Quandt (1921–1967), German industrialist, stepson of Joseph Goebbels Herbert Quandt (1910–1982), German industrialist, regarded as having saved BMW and made huge profit Johanna Quandt (1926–2015), German widow of industrialist Herbert Quandt Stefan Quandt, German engineer and industrialist Silvia Quandt, German artist and one of Germany's richest women