Kominato Railway is a transportation company headquartered in Ichihara City, Chiba Prefecture.
It operates the railway line between Goi and Kazusa-Nakano, and its bus services cover a wide area, extending along the Uchibo area from Chiba City to Kisarazu City, and along the Sotobo area from Togane City to Katsuura City.
Since 1997, following the opening of the Tokyo Bay Aqua-Line, the company has also operated many express bus services to the Tokyo and Kanagawa areas.