Nankai Electric Railway Co., Ltd. is a private railway in Japan, founded in 1884. The name Nankai comes from the company's routes along the Nankaidō, the old highway that ran south from the old capital, Kyoto, along the sea coast. Nankai predates all the electric railways in the Tokyo region.

Chūō-ku is one of 24 wards of Osaka, Japan. It has an area of 8.88 km2, and a population of 60,085. It houses Osaka's financial district, as well as the Osaka Prefecture offices and principal shopping and tourist areas.