Kamiōoka Station (上大岡駅, Kamiōoka-eki) is an interchange railway station located in Kōnan-ku, Yokohama, Kanagawa Prefecture, Japan, operated by the private railway operator Keikyū and the Yokohama Municipal Subway.

It is 30.8 kilometers from the starting point of the Keikyū Main Line at Shinagawa Station and 13.8 kilometers from the terminus of the Blue Line at Shōnandai Station.

The underground Blue Line station has a single island platform and two tracks.

[citation needed] The Yokohama Municipal Subway connected to Kamiōoka on December 16, 1972.

[2] During the same period, the Yokohama Municipal Subway was used by an average of 73,500 passengers daily,[3] The daily average passenger figures for previous years are as shown below.