The Islamic Republic of Iran, due to its location in the West Asia region and proximity to Central Asia and the Caucasus, requires an optimal regionalization strategy. Consequently, this research has been conducted with the aim of providing a scientific and analytical explanation of the dimensions and key components of the Islamic Republic of Iran's regionalization strategy within the context of the ongoing transition in the international system. The main research question is as follows: within the theoretical framework of Neorealism and under the specific conditions of the transition of the international system, how can Iran's regionalization strategy and its components be delineated? In response to this question, the hypothesis is formulated that the Islamic Republic of Iran's regionalization strategy can be operationalized across five dimensions—political, security, economic, and socio-cultural—with specific components in each dimension. Employing an explanatory-analytical approach and utilizing library resources, policy documents, and up-to-date regional evidence, this study has identified and evaluated these dimensions and components. The results indicate that the combination and synergy of these five dimensions, while enhancing Iran's resilience and balancing power, will provide new opportunities for elevating the country's status as a pivotal actor in the emerging regional order.