By Shahabuddin Amerudin Heat waves pose a growing threat to society, necessitating effective management strategies. Geographic Information Systems (GIS) offer a range of technical tools, techniques, and methods to handle and mitigate the impacts of heat waves. By leveraging GIS capabilities such as mapping, modeling, analysis, and prediction, we can enhance our understanding of heat waves and implement targeted strategies to protect vulnerable populations, optimize urban planning, and foster climate resilience. This article explores the technical applications of GIS in heat wave management. Mapping Heat Vulnerability GIS enables the integration of diverse spatial data layers to map and visualize heat