Japan leads in hydrogen technology, promoting hydrogen fuel cells for sustainability. The Japan Hydrogen Bus Market is rapidly expanding, expected to reach USD 700 million by 2035 with a 27.5% CAGR. Major cities like Tokyo, Osaka, and Yokohama are integrating hydrogen buses into public transport systems, showcasing a commitment to sustainability. Key drivers include government initiatives like the Basic Hydrogen Strategy and Green Growth Strategy. Expansion of hydrogen refueling infrastructure, technological advancements, and public-private collaborations are propelling market growth. Stringent emission regulations and growing public awareness are accelerating the shift to hydrogen buses. The advantages of hydrogen buses over electric buses, such as extended range and quick refueling times, make them attractive for various applications like public transportation, airport services, intercity travel, and smart city projects. Japan's focus on renewable energy sources and strong government support through subsidies and financial incentives further drive the adoption of hydrogen buses. Key players like Toyota and Honda are investing in fuel cell technology, contributing to the country's hydrogen mobility revolution.