Warnemünde (German pronunciation: [vaʁnəˈmʏndə] ⓘ, literally Mouth of the Warnow) is a seaside resort and a district of the city of Rostock in Mecklenburg, Germany.

Founded in about 1200, Warnemünde was for centuries a small fishing village with minor importance for the economic and cultural development of the region.

Once completely dependent on the fishing industry, Warnemünde's economic alignment has shifted inevitably from the primary to the secondary and tertiary sector.

Being a centre of maritime traffic, the district of Warnemünde comprises numerous navigational aids, the oldest being the lighthouse, built in 1897, and still currently in use.

In the summer, the tower, approximately 37 metres (121 ft) high, allows visitors to enjoy an impressive view over the Baltic Sea and the northern districts of Rostock.

Warnemünde's large, sandy beaches are the broadest on the German Baltic Sea coast and stretch out over a length of 3 kilometres (1.9 mi).