| Langsee | |
| Location: | Rostock, Mecklenburg-Vorpommern |
| Pushpin Map: | Mecklenburg-Vorpommern |
| Coords: | 53.6321°N 12.2343°W |
| Basin Countries: | Germany |
| Area: | 0.82km2 |
| Elevation: | 50.1m (164.4feet) |
Langsee is a lake in the Rostock district in Mecklenburg-Vorpommern, Germany. At an elevation of 50.1 m, its surface area is 0.82 km².