The global hydrogen internal combustion engine (ICE) market is witnessing significant growth, with a projected increase from USD 18.2 billion in 2023 to USD 51.3 billion by 2034 at a CAGR of 9.9%. This growth is primarily fueled by the surge in hydrogen-powered trucks and buses in the transportation sector, aligning with the global shift towards clean energy solutions. Hydrogen ICEs are being recognized as a viable option offering near-zero CO2 emissions, thus aiding in reducing the environmental impact of heavy-duty vehicles. The market's positive momentum is supported by key developments such as Cummins Inc. starting the production of hydrogen ICE for Tata Motors in India and Robert Bosch GmbH planning to launch its first hydrogen ICE for trucks. Leading industry players like Toyota, Cummins, and Robert Bosch are actively investing in advanced technologies like high-pressure in-cylinder direct injection to ensure improved engine stability and efficiency. The market analysis includes detailed segment and regional evaluations, highlighting key drivers, opportunities, and emerging trends. The competitive landscape showcases prominent companies such as Toyota Motor Corporation, Cummins Inc., and INNIO Group, who are enhancing their product portfolios through innovative technologies and strategic partnerships. Regions like Asia Pacific and Europe lead in the hydrogen ICE market due to robust government support and initiatives driving advancements in hydrogen technology and clean energy solutions. Overall, the hydrogen ICE market is on a trajectory towards a greener future, with industry players and global initiatives working together to drive innovation and sustainability in the transportation sector.