Kōnandai Station (港南台駅, Kōnandai-eki) is a railway station operated by JR East's Negishi Line located in Kōnan-ku, Yokohama, Japan. It is 16.0 kilometers from the terminus of the Negishi Line at Yokohama Station and 75.1 kilometers from the terminus of the Keihin-Tōhoku Line at Ōmiya Station.
The area around Kōnandai Station was controlled by the American military in the post-war era. The property was returned to the Japanese government by 1965 and developed into a housing district. The Japan National Railways (JNR) Keihin-Tōhoku Line was extended from its former terminus at Yōkōdai Station through to Ōfuna Station in 1973, and Kōnandai Station was opened on 9 April 1973. The station came under the management of JR East on April 1, 1987 after the privatization of the JNR. Kōnandai Station has an island platform serving two tracks. The platforms are connected to the station building by an overpass.