is a railway station of Chà «à  Main Line, East Japan Railway Company (JR East) in Nagasaka, in the city of Hokuto, Yamanashi Prefecture, Japan.
Nagasaka Station is served by the Chà «à  Main Line, and is 166.3 kilometers from the terminus of the line at Tokyo Station.
The station consists of two opposed ground level side platforms. The station is built on a hill, with the tracks reached via stairs underneath. The station is unattended.
Nagasaka Station was opened on December 11, 1918 as a station on the Japanese Government Railways (JGR) Chà «à  Main Line. The JGR became the JNR (Japanese National Railways) after the end of World War II. Scheduled freight services were discontinued from February 1972. With the dissolution and privatization of the JNR on April 1, 1987, the station came under the control of the East Japan Railway Company.
In fiscal 2015, the station was used by an average of 1,131 passengers daily (boarding passengers only).