This study presents the design and implementation of an Android-based Geographic Information System (GIS) for mapping souvenir shops in Aceh Province. The system was developed to address the lack of an integrated digital platform that provides reliable information about local souvenir vendors. Using GIS technology, the application enables users to view shop locations, product details, and navigation routes through interactive map visualization. The system development followed the Waterfall model, consisting of five main stages: requirements analysis, design, implementation, testing, and maintenance. Data were collected through literature review, field observation, and interviews. The application was built using Flutter for the mobile interface, PHP for the web server, and MySQL for database management, supported by the Google Maps API for spatial data integration. The resulting system features two main interfaces: a web-based dashboard for administrators and an Android application for end users. Testing showed improvements in efficiency, with reductions of approximately 43% in data entry time, 80% in report generation, and 40% in manpower requirements, along with an 86% reduction in annual operational costs. These findings demonstrate that the GIS-based system is effective, secure, and practical for managing and distributing information about Acehnese souvenir shops. Beyond its functional benefits, the application supports local tourism and strengthens small business visibility by providing accessible, location-based information.