The global hydrogen buses market is experiencing significant growth, with projections indicating a substantial increase from US$ 1,172.7 million in 2025 to US$ 2,625.1 million by 2032, driven by the rising demand for zero-emission public transportation. Europe leads this growth, supported by strong government initiatives, while Asia Pacific is the fastest-growing region due to substantial investments. The adoption of Proton Exchange Membrane Fuel Cell (PEMFC) technology is a key driver, known for its efficiency in converting hydrogen to electricity. Government support through subsidies and grants is incentivizing the shift to hydrogen buses. Challenges like high operational costs and the need for robust refueling infrastructure are being addressed through investments. Technological advancements in fuel cell systems and hydrogen storage are further fueling market expansion. While Europe is a frontrunner in the adoption of hydrogen buses, the Asia-Pacific region, particularly Japan and China, is also making significant strides. Despite the positive outlook, challenges include the limited hydrogen refueling infrastructure and the high costs of green hydrogen production, hindering widespread adoption.