Nøklevann is a lake in Østmarka in Oslo, Norway. It has a surface area of 0.8 km2, and is 163 meters above sea level. The lake drains through Ljanselva to Bunnefjorden. It is a former drinking water supply for Oslo.
References
"Miljolare.no". Archived from the original on 6 October 2014. Retrieved 30 September 2014.
Godal, Anne Marit (ed.). "Nøklevann". Store norske leksikon (in Norwegian). Norsk nettleksikon. Archived from the original on 10 December 2015. Retrieved 21 November 2012.