Geopolitics is among the influential elements in the field of foreign policy. During the Pahlavi era, the country, influenced by geopolitical factors, faced many ups and downs in the realm of foreign policy. Countries, as actors in the power and politics arena, have aimed to centralize and exert central influence over other players. The more centralization an actor achieves, the higher the ranking, more extensive connections, and obtaining a more desirable position be-come. The aim of this article is to investigate the impact of geopolitics on Iran's foreign policy during the second Pahlavi era. The main question posed is: What impact has geopolitics had on shaping Iran's foreign policy during the second Pahlavi era? The hypothesis suggests that geopolitics acted as the main and influential factor in Iran's foreign policy during the second Pahlavi era, leading to an increase in the country's power. The results of the article indicate that the Middle East, during the second Pahlavi era, functioned as a geopolitical network with various sub-networks. Eleven geopolitical sub-networks can be identified, among which the most significant include the Islamic sub-network, energy, democracy, and the resistance sub-network. Iran held a central position among Middle Eastern countries in these geopolitical sub-networks during the second Pahlavi era. Iran's centrality in the Western sub-networks of security and economy allowed it to better and more extensively pursue its national interests. The research methodology employed is descriptive-analytical, based on library studies.
