Rivers are dynamic systems that frequently experience geohazards, including flooding, bank erosion, channel migration, and sediment deposition. These hazards can lead to severe socio-economic and environmental impacts, particularly in densely populated or agriculturally important regions. Geospatial technologies, including Remote Sensing (RS), Geographic Information Systems (GIS), and the Global Positioning System (GPS), have revolutionized the way such hazards are detected, analyzed, and managed. This book chapter reviews the critical role of these technologies in the utilization of geospatial data and its analysis of different types of software and models, which monitor river behavior, map hazard-prone zones, and support predictive modelling. Satellite imagery and aerial data enable continuous monitoring of riverine changes, while GIS facilitates spatial analysis and the creation of hazard vulnerability maps.