Duckwitz () is a German surname, derived from a homonymous place in Behren-Lübchin. It is most prevalent in Germany and the United States.

Notable people with this surname include: Arnold Duckwitz (1802-1881), German statesman Eike Duckwitz (born 1980), German hockey player Georg Ferdinand Duckwitz (1904-1973), German diplomat

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