This article examines the role of Geographic Information Systems (GIS) in fisheries resource management, particularly in addressing sustainability challenges. GIS has proven effective in collecting, analyzing, and visualizing critical data to formulate sustainable fisheries management strategies while supporting ecosystem conservation. Southeast Asia, as a major global fisheries producer, faces an urgent need to strengthen sustainable management in coastal, inland, and marine areas to ensure food security and biodiversity conservation. This study employs a systematic review approach, analyzing high-indexed journal articles published between 2017 and 2023. Articles were sourced from Scopus, Web of Science, and SpringerLink, using keywords such as "Geographic Information Systems (GIS)," "Fisheries Management," "Remote Sensing," and "Sustainable Fisheries." Articles were evaluated based on inclusion criteria, including the application of GIS in fisheries, the integration of remote sensing technologies, and their impact on sustainable fisheries management. Findings highlight that GIS plays a crucial role in mapping critical habitats, assessing habitat suitability, predicting species distribution, monitoring fisheries resources, and analyzing fish population patterns. The integration of GIS with remote sensing and standardized databases enhances data-driven decision-making, particularly in managing invasive and endangered species. Additionally, GIS applications in dynamic fisheries research and holistic resource management planning are increasingly recognized in the context of climate change and ecosystem stress. In conclusion, GIS presents significant potential for enhancing sustainable fisheries management, supporting ecosystem conservation, and guiding strategic fisheries policies for future generations.