Minami-Nagai Station (南長井駅, Minami-Nagai eki) is a railway station in Nan'yō, Yamagata, Japan, operated by the Yamagata Railway.

Minami-Nagai Station is a station on the Flower Nagai Line, and is located 6.8 rail kilometers (about 4 rail miles) from the terminus of the line at Akayu Station.

Minami-Nagai Station has a single side platform serving traffic in both directions.

Minami-Nagai Station opened on 20 May 1960.

This Yamagata Prefecture railroad station-related article is a stub.