This chapter addresses the challenges of recycling nonbiodegradable rubber waste considering environmental concerns and the need for sustainable materials. It focuses on the development of rubber composites using discarded rubber products as fillers, enhancing their mechanical properties, and reusing them effectively. The discussion covers strategies for repurposing rubber waste in various applications, such as automotive and construction and highlights the improvement of rubber composites’ performance through the incorporation of rubber waste fillers. This approach emphasizes sustainability and innovation in the rubber industry, promoting a more responsible and resource-efficient future. It signifies a significant step toward implementing circular economy principles and reducing the environmental impact of rubber waste disposal within the industry.