Garabogazköl (also spelled KARA-BOĞA-Gol; "Black Strait Lake"), or Garabogazköl Aylagy ("Black Strait Lake Bay"), is a shallow, highly saline lagoon off the Caspian Sea in northwestern Turkmenistan.

The city of Garabogaz lies nearby, about 50 km (31 mi) north of the channel between the main Caspian basin and the Garabogazköl lagoon.

[4] Due to the exceptionally high salinity, comparable to the Dead Sea, it has little to no marine vegetation.

Large evaporite deposits consisting mostly of salt on the south shore have been harvested by the local population since the 1920s, but in the 1930s manual collection stopped and the industry shifted northwest to its present center near Garabogaz.

From the 1950s onward, groundwater was pumped from levels lower than the bay itself, yielding more valuable types of salts.