Amsinck is a Dutch-origined patrician family whose members were prominent merchants in multiple countries including the Netherlands, Hamburg, Portugal, England, France, Hanover, Holstein, Denmark, Suriname and India, and whose Hamburg branch from the 17th century formed part of the city-state's ruling class, the Hanseaten or hereditary grand burghers, who enjoyed legal privileges in Hamburg until 1918. Amsinck has been one of Hamburg's great business families over many centuries, and its members reached the highest positions in Hamburg society, including as senators and head of state. A branch of the family were large plantation owners in Suriname. The Hamburg branch retained a Dutch identity for centuries, often intermarrying with other Dutch-origined patrician families.