Bleikøya is an island in the inner part of Oslofjord, in the municipitality of Oslo.
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.
The name is probably referring to the color of the rock of the island.
This Oslo location article is a stub.