The 2024 Southeast Asia Climate Outlook Survey conducted by ISEAS - Yusof Ishak Institute highlights the growing public enthusiasm for green hydrogen in Southeast Asia. The region's increasing energy demand and carbon-intensive economic development have spurred interest in hydrogen as a decarbonisation pathway. Reports from global organizations like the IEA and IRENA have fueled enthusiasm by underlining hydrogen's potential in various sectors. ASEAN countries are particularly interested in low-carbon hydrogen to achieve renewable energy targets and decarbonisation goals. The distinction between types of hydrogen production, such as blue and green hydrogen, is crucial in understanding the environmental impact and cost efficiency of each. Green hydrogen, produced through electrolysis from renewable sources, holds promise despite current cost challenges. Several Southeast Asian countries have introduced national hydrogen strategies to capitalize on the global hydrogen trend. However, challenges lie ahead regarding public perception of green hydrogen. While public support is high currently, it hinges on policymakers' ability to make green hydrogen accessible and affordable. Concerns over safety, costs, and overall uncertainties in the development process could sway public opinion negatively. The article emphasizes the importance of addressing these challenges to ensure continued public backing for green hydrogen initiatives. Overall, Southeast Asia's journey towards embracing green hydrogen as a sustainable energy solution is marked by both enthusiasm and the need for careful policy implementation.