Relations between the Islamic Republic of Iran and the Republic of Azerbaijan, with a common ‎historical and cultural background, provide the basis for important interactions, especially in the ‎geopolitical and security fields. This study used the futures research method to analyze the impact ‎of the geopolitical codes of the Republic of Azerbaijan on Iran's national security after the Second ‎Karabakh War. Using the analysis of goals and trends, key stakeholders were identified and ‎political-geopolitical developments were examined. The findings showed that these codes have ‎multifaceted and significant impacts on Iran's national security; including changing the regional ‎balance of power, increasing border security threats, and making diplomatic relations more ‎complex. For example, Azerbaijan's expansion of military cooperation with Western countries and ‎the possibility of joining NATO, as one of the geopolitical codes under study, significantly ‎overshadow Iran's security. To address these challenges, strategies such as direct diplomacy, ‎imposing economic and cultural restrictions, strengthening regional economic and security ‎cooperation, addressing ethnic and religious issues, and developing cultural diplomacy were ‎proposed. The results of this study emphasize the need to strengthen active diplomacy, diversify ‎regional relations, and use multilateral diplomacy tools to reduce tensions and ensure Iran's national ‎interests. The importance of these findings lies in providing practical strategies for effectively ‎managing geopolitical challenges arising from the policies of the Republic of Azerbaijan and ‎enhancing Iran's national security.‎