Sortedam Lake (Danish: Sortedams Sø) is a lake at Copenhagen in Denmark.

A vertical slope was added in the area in 1929.

In September 2012 it was announced that there were plans to build a floating bridge on the lake, and construction material left from digging tunnels would be placed on the eastern part of Sortedam in the Østerbrogade (‘Lille Trianglen’) area.

[1] Painter Christen Købke lived near the lake in the 1830s, and painted Efterårsmorgen ved Sortedamssøen in 1838.