Muikamachi Station (六日町駅 Muikamachi-eki?) is a railway station located in Minamiuonuma, Niigata, Japan, operated jointly by the East Japan Railway Company (JR East) and the third sector Hokuetsu Express.
Muikamachi Station is a station on the Jōetsu Line, and is located 111.8 kilometers from the starting point of the line at Takasaki. It is also a terminal station for the Hokuhoku Line.
The station has a single side platform and two island platforms serving five tracks. The station has a Midori no Madoguchi staffed ticket office.
Muikamachi Station opened on 18 November 1923. Upon the privatization of the Japanese National Railways (JNR) on 1 April 1987, it came under the control of JR East.
In fiscal 2015, the station was used by an average of 1924 passengers daily (boarding passengers only).
Coordinates: 37°04′00″N 138°52′33″E / 37.0668°N 138.8758°E