Abstract: The modular, retractable barrier is a room partition. The modular, retractable barrier comprises one or more barrier structures. Each of the one or more barrier structures comprises a plurality of scroll rods and a mesh barrier. The mesh barrier is a scroll like structure. When each of the plurality of scroll rods is separated the mesh barrier is deployed in the space between each of the plurality of scroll rods to form a barricade structure. When the plurality of scroll rods is later brought together, the mesh barrier is retracted. The modular, retractable barrier is a modular structure wherein any first barrier structure selected from the one or more barrier structures can be removably attached to any second barrier structure selected from the one or more barrier structures such that overall span of the barricade formed by the modular, retractable barrier can be increased.