Tsubame-Sanjō Station is a railway station in the city of Sanjō, Niigata, Japan, operated by East Japan Railway Company. The station sits directly on the border of the cities of Sanjō and Tsubame. As the station headquarters are located on the Sanjō side of the station, Tsubame-Sanjō Station is considered to be in Sanjō. The station is located 293.8 kilometers from Tokyo.