In the era of interconnected and intelligent systems, the integration of Software Defined Networking (SDN) and the Internet of Things (IoT) has ushered in a paradigm shift with far-reaching implications. Policy management emerges as a keystone, with significant implications for connectivity and security. Robust policy frameworks are imperative in addressing the challenges posed by the dynamic IoT landscape. Focusing on this, the chapter unfolds the critical landscape of policy management in the SDN-IoT networks, emphasizing its role in seamless connectivity and enforcing security measures. We delve into the fundamental frameworks and languages governing these policies and SDN’s integral function in enforcing them across these diverse networks. Real-world applications demonstrate the transformative impact of policy management, showcasing its efficacy in fortifying IoT devices against a spectrum of evolving security threats. In addition, the chapter investigates the scalability, flexibility, and efficacy of policy management in SDN-IoT networks. Examining these gives a comprehensive view of various policy management frameworks, providing insights into their deployment, adaptation to dynamic network conditions, etc. As a valuable resource for researchers, practitioners, and policymakers, this chapter offers a multidimensional perspective on policy management in SDN-IoT networks. By delving into security, adaptability, and efficiency considerations, it provides insights and practical strategies to navigate the complexities of this transformative technological convergence.