Lake Brâncoveanu (Romanian: Lacul Brâncoveanu) is a natural salt lake in the town of Ocna Sibiului, Sibiu County, Transylvania, Romania. It is one of the many lakes of the Ocna Sibiului mine, a large salt mine which has one of the largest salt reserves in Romania. The lake has the biggest salinity out of every lake in the mine and is one of Romania's most salty lakes.