The Nishitetsu Amagi Line (西鉄甘木線, Nishitetsu Amagi-sen) is a Japanese railway line operated by the private railway operator Nishi-Nippon Railroad (Nishitetsu), which connects Kurume and Asakura in Fukuoka Prefecture.

[1] The Mitsui Electric Tramway (三井電気軌道, Mitsui Denki Kidō) opened a 1,435 mm (4 ft 8+1⁄2 in) gauge line electrified at 600 V DC from Miyanojin to Kitano in 1915.

The Kitano to Amagi section opened in 1921.

[citation needed] On 30 June 1924, the Mitsui Electric tramway was absorbed into the Kyushu Railway system, this line becoming the Mitsui Line.

[citation needed] From 1 October 1989, wanman driver only operation commenced on the line.