The Sekishō Line is a railway line in Japan operated by Hokkaido Railway Company. The main Sekishō Line connects Minami-Chitose in Chitose and Shintoku Station in the town of Shintoku. The name of the line comes from the subprefectures along the route, namely Ishikari (石狩) and Tokachi (十勝).

The Hokkaido Railway Company is one of the constituent companies of the Japan Railways Group, and is often referred to using its official abbreviation of JR Hokkaido . It operates intercity and local rail services in Hokkaido, Japan. The company introduced Kitaca, a smart card ticketing system, in autumn 2008.