Luodis Lake is a lake situated in the Zarasai district municipality of Lithuania. It is the 6th largest lake in Lithuania. The town of Salakas is also situated near the lake.

The length of the lake, measuring from North-East to South-West is 6.3 km, and its width can be up to 4.4 km. The deepest point reaches 18.4 m. The lake contains 2 larger islands - Alaunė and Sadausko, and 2 smaller ones - Pilelė and Kanapinė. The total area of the 4 islands is 17.8 ha.