Georg Heinrich Sieveking (1 January 1751 in Hamburg, Germany – 25 January 1799 in Hamburg, Germany) was a German merchant and follower of the Enlightenment. Together with his friend and business partner, Caspar Voght, he led one of the largest trading firms in the Hanseatic League during the second half of the 18th century. On 14 July 1790, the first anniversary of the Storming of the Bastille, a freedom celebration organized by Sieveking occurred in Harvestehude, a neighborhood of Hamburg, which received attention far beyond the city. In 1796, a few years before his death, Sieveking succeeded in abolishing the 1793 Hamburg-imposed Embargoes against Paris.