Flood Disaster Mitigation Efforts in Pidie Jaya District, Aceh Province to Support National Security].This study was conducted to analyze flood disaster mitigation efforts in Pidie Jaya District to support national security. This research used a qualitative method and descriptive analysis. The data used in this research were primary and secondary data. Primary data was obtained through interviews conducted online using the zoom meeting application on March 22-25, 2021 involving several agencies in Pidie Jaya District such as, Badan Penanggulangan Bencana Daerah (BPBD), Dinas Lingkungan Hidup, Badan Perencanaan Pembangunan Daerah (Bappeda), dan Dinas Pekerjaan Umum. Secondary data is obtained through documents held by agencies related to flood disasters. The results of this research indicate that the Pidie Jaya District Government has made mitigation efforts for flood disasters such as coordinating with related sectors, identify disaster-prone areas, conduct socialization and provide education on disaster management, as well as strengthen structures in the cliff areas of Krueng Meureudu, Krueng Putu, and Krueng Jeulanga. However, these efforts did not run optimally because one of the factors causing the flooding had not been eliminated. The solution that can be offered by the author is that it is necessary to make contingency plans and documents for disaster-prone areas, an early warning system for flood disasters, as well as legal strengthening for illegal logging actors in the upstream area of the river which is one of the factors causing flooding.