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The former sanatorium building at Bleikøya.
View from the southern part of Bleikøya.
World War II memorial on Bleikøya.
Farm on Bleikøya.

Bleikøya is an island in the inner part of Oslofjord, in the municipitality of Oslo. It is located between Hovedøya and Sjursøya. From the late 19th century a sanatorium for children suffering from scrofula was located on the island.[1][2]

In 2008 the Bleikøya Nature Reserve was established on the northeastern part of Bleikøya, including the islet Bleikøykalven.[3][4]

The name[edit]

The først element is bleik ('pale') - the last element is the finite form of øy ('island'). The name is probably referring to the color of the rock of the island.


  1. ^ Arstal, Aksel; Just, Carl, eds. (1966) [1938]. "Blekøya". Oslo byleksikon (in Norwegian) (2 ed.). Oslo: Aschehoug. 
  2. ^ Beretning om Kristiania kommune for aarene 1887–1911 (in Norwegian). Kristiania: Municipality of Kristiania. 1914. p. 137. 
  3. ^ "37 verdifulle områder i Oslo og Akershus er nå vernet" (in Norwegian). Norwegian Directorate for Nature Management. Retrieved 15 January 2012. 
  4. ^ "Bleikøya naturreservat" (in Norwegian). Fylkesmannen in Oslo og Akershus. Retrieved 15 January 2012. 

Coordinates: 59°53′N 10°44′E / 59.883°N 10.733°E / 59.883; 10.733