In the contemporary international system, power dynamics are increasingly defined by geo-economic logic and maritime connectivity rather than purely territorial control. Despite Iran's pivotal location linking Eurasia and the Indian Ocean, the country faces marginalization from major regional transport corridors and energy pipelines due to ideological geopolitical approaches and security-centric policies. This study employs a descriptive-analytical method using library data to examine the disparity between Iran's territorial potential and its practical performance in the global arena. Findings indicate that sustaining national power requires a paradigm shift from a land-centric mentality to a maritime-oriented geo-economic strategy. This involves prioritizing the development of coastal zones, particularly the Makran region and Chabahar Port, as engines of growth and integrating into regional corridors to avoid becoming a "geopolitical black hole." Furthermore, the research argues that maritime policy should focus on securing sea lanes through economic interdependence and confidence-building rather than military posturing. Adopting this framework enables Iran to transition from the periphery to the core of the global "space of flows," ensuring sustainable development, enhanced connectivity, and national security through economic integration.