Historic harbor Berlin, Harbor museum and tourist attraction in Berlin-Mitte, Germany.

The Historic Harbor Berlin is a maritime museum and port facility along the Spree River in central Berlin, featuring original vessels that trace the evolution of inland water transport. The site includes waterside pathways and several boats from different eras that visitors can explore.

Berlin's first written record of a harbor is a parchment charter sealed by Margrave Otto V on 7 May 1298, granting the city staple rights and selling it the timber and ship toll for 220 pounds of Brandenburg coinage; its authenticity has been questioned since Hermann Krabbo. The present Historic Harbor at the Mühlendamm lock and Fischerinsel has been run since 1994 by the Berlin-Brandenburgische Schifffahrtsgesellschaft, founded in summer 1990 aboard the steam tug Nordstern.

The harbor's name recalls Berlin's first port at the Mühlendamm lock, where the double city of Berlin-Kölln arose. A permanent exhibition links the city's cultural development to inland shipping. Volunteers keep the vessels running and look after the waterfowl that gather among the moored barges.

The site is centrally located and easily reachable by public transportation, with plenty of space to walk along the waterfront. Visit on clear days for the best experience, as the vessels and pathways are most enjoyable in good weather.

Since 2025 the museum boat Hans Wilhelm carries a solar "flower" on deck: panels that unfold like a sunflower and supply power for the harbor. The association also plans an art trail along the water. The barge Andreas in the foreground shows its name in black letters on a red hull.