Wasserburg am Inn is a town in Rosenheim district in Upper Bavaria, Germany. The historic centre is a peninsula formed by the meandering Inn River. Many Medieval structures remain intact, giving the city a unique air.
In the early days, Wasserburg was an important hub in the salt trade. Its bridge was the only possibility to cross the river Inn for 30 km in both directions. On its shore the salt, mined in Berchtesgaden or produced in the Saline (saltern) at Bad Reichenhall and shipped from there by cart, could be loaded on ships travelling on the Inn River. Up to the 17th century Wasserburg was used as the port of the capital Munich.
Up until 1972, when it was merged with the district Rosenheim, Wasserburg was a district capital on its own.