The global hydrogen bus market is expected to witness significant growth over the forecast period from 2025 to 2032, with a projected CAGR of 32.2%. The market, valued at an estimated $1.8 billion in 2025, is set to reach $18.2 billion by 2032. Single deck buses dominate the market, accounting for over 40% of the share, primarily due to urban transportation incentives and environmental policies promoting cleaner options. On the technological front, proton exchange membrane fuel cells lead in market share, while solid oxide fuel cells are expected to grow at the highest CAGR, driven by continuous performance improvements. The market is segmented based on power output as well, with below 100 kW systems favored for urban areas and micro-transit services. Europe leads in regional market share with over 38%, supported by hydrogen bus manufacturers and infrastructure investment. Asia-Pacific is also anticipated to experience rapid growth with a projected CAGR of 34.5%, fueled by economic growth in countries like China, South Korea, Japan, and India. North America shows promising growth, backed by significant government investments in Regional Clean Hydrogen Hubs. The market is driven by various factors such as the increasing demand for zero-emission commercial vehicles, government initiatives towards cleaner energy sources, advancements in fuel cell technologies, expansion of hydrogen infrastructure, and the modernization of public transportation fleets.