Flooding poses significant risks to communities worldwide, necessitating innovative strategies for risk management and resilience. This study explores participatory flood risk mapping (PFRM) in Nakhon Nayok Province, Thailand, a region characterized by recurrent flood hazards. By integrating local knowledge with Geographic Information Systems (GIS), this research investigates communitydriven approaches to flood risk identification and contrasting these findings with GIS-based map and traditional top-down official government map. Results highlight discrepancies between perceived and modeled risks, emphasizing the value of participatory methods in bridging gaps between scientific and local perspectives. The study underscores the importance of community involvement in developing adaptive, inclusive, and effective flood risk management strategies, ultimately fostering resilience and ownership within affected populations.