The Kobe Municipal Subway is a rapid transit system in Kobe, Hyōgo Prefecture, Japan. Like other large Japanese cities, Kobe's subway system is heavily complemented by suburban rail. In addition, two people mover lines also serve the Kobe area: the Port Island Line and the Rokko Island Line.

Kobe is the capital city of Hyōgo Prefecture, Japan. With a population around 1.5 million, Kobe is Japan's seventh-largest city and the third-largest port city after Tokyo and Yokohama. It is located in the Kansai region, which makes up the southern side of the main island of Honshū, on the north shore of Osaka Bay. It is part of the Keihanshin metropolitan area along with Osaka and Kyoto. The Kobe city centre is located about 35 km (22 mi) west of Osaka and 70 km (43 mi) southwest of Kyoto.