Warnemünde is a seaside resort and a district of the city of Rostock in Mecklenburg, Germany. It is located on the Baltic Sea and, as the name implies, at the estuary of the river Warnow. Warnemünde is one of the world's busiest cruise ports.

Rostock officially the Hanseatic and University City of Rostock, is the largest city in the German state of Mecklenburg-Vorpommern and lies in the Mecklenburgian part of the state, close to the border with Pomerania. With around 210,000 inhabitants, it is the third-largest city on the German Baltic coast after Kiel and Lübeck, the eighth-largest city in the area of former East Germany, as well as the 39th-largest city of Germany. Rostock was the largest coastal and most important port city in East Germany.