Schönbeck is a surname. Notable people with the surname include:
Christoph Andreas Johann Szembek or Schönbeck (1680–1740), Bishop of Ermland 1724-1740 Florian Schönbeck (born 1974), German decathlete Jan Szembek or Schönbeck (died 1731), Deputy Chancellor of the Polish Crown Jan Szembek (diplomat) or Schönbeck, diplomat of the Second Polish Republic Rudolf Schönbeck (1919–2003), German football player