The West Japan Railway Company, also referred to as JR West , is one of the Japan Railways Group companies and operates in western Honshu. It has its headquarters in Kita-ku, Osaka. It is listed in the Tokyo Stock Exchange, is a constituent of the TOPIX Large70 index, and is also one of only three Japan Railways Group constituents of the Nikkei 225 index: the others are JR East and JR Central. It was also listed in the Nagoya and Fukuoka stock exchanges until late 2020.

The Japan Railways Group, more commonly known as the JR Group or simply JR, is a group of railway companies in Japan that underwent division and privatization of the government-owned Japanese National Railways (JNR) on April 1, 1987. It consists of six passenger railway companies, one freight railway company, and two non-service companies. Most of the liability of the JNR was assumed by the JNR Settlement Corporation.