The Hakataminami Line (博多南線, Hakataminami-sen) is an 8.5-kilometre-long (5.3 mi) railway line in Fukuoka Prefecture, Japan, connecting Hakata Station in Fukuoka with Hakataminami Station in Kasuga.

The Kyushu Shinkansen, opened on 12 March 2011, shares part of the route.

The trip from Hakata to Hakataminami takes ten minutes and costs ¥300.

At that time, Kasuga was a rural region and did not merit a railway station of its own.

JR decided to build a station adjacent to the depot, and inaugurated service on 1 April 1990 with 0 Series Shinkansen trains.