Lake Vrana (Croatian: Vransko jezero) in Dalmatia is the largest lake in Croatia. It is a designated nature park (park prirode), a kind of protected area in Croatia. It is located in Zadar County and Šibenik-Knin County, between the towns and municipalities of Benkovac, Pirovac, Pakoštane, Stankovci and Tisno.
The area of the lake is 30.7 square kilometres (11.9 sq mi), the elevation of its surface above sea level is only 0.1 metres (0.33 ft), while its maximum depth is 4 metres (13 ft).
The lake is in a karst valley filled with water and is a rare example cryptodepression. The dominant feature of the park is a special ornithological reserve, an almost untouched natural habitat of birds, a rare wetland systems, full of high biodiversity and an outstanding scientific and ecological value. The lake provides an ample amount of fish for fishing enthusiasts.