Łuknajno
| Łuknajno | |
|---|---|
Łuknajno lake | |
| Location | Masurian Lake District, Warmian-Masurian Voivodeship |
| Coordinates | 53°48′19″N 21°38′34″E / 53.80528°N 21.64278°E |
| Basin countries | Poland |
| Max. length | 3.3 km (2.1 mi) |
| Surface area | 6.8 km2 (2.6 sq mi) |
| Average depth | 0.6 m (2 ft 0 in) |
| Max. depth | 3 m (9.8 ft) |
| Surface elevation | 115 m (377 ft) |
| Official name | Luknajno Lake Nature Reserve |
| Designated | 22 November 1977 |
| Reference no. | 166 |
Łuknajno [wukˈnajnɔ] (German : Lucknainer See) is a lake and nature-reserve in the Masurian Lake District of north-eastern Poland, in Warmian-Masurian Voivodeship. Łuknajno also has a forester's lodge situated near its northern shore.