While closely related, JR (Japan Railways) and Shinkansen are not the same thing. JR refers to the Japan Railways Group, which is the massive network of six regional passenger companies and one freight company that operates the majority of Japan's railway infrastructure. In contrast, Shinkansen specifically refers to the "bullet trains"—the high-speed rail lines that connect major cities like Tokyo, Osaka, and Fukuoka. Think of JR as the "brand" or the company and Shinkansen as the specific "premium product" they offer. JR operates everything from local commuter trains and mountain lines to these high-speed services. However, because the Shinkansen is the most famous part of their network, people often conflate the two. In 2026, you will still use JR stations to board Shinkansen trains, but your JR local pass might not always include the Shinkansen surcharge unless you have a specific "High-Fidelity" regional or national JR Pass.