The Arab uprisings, and the one in Bahrain in particular, have caused tensions between Iran and Saudi Arabia. The Bahraini government’s Saudi-backed crackdown on pro-democracy protests has caused ties between Iran and the Persian Gulf Cooperation Council (GCC) to turn somewhat hostile in nature. However, just a few years ago, the situation was very different, with Iran being invited to a GCC summit. This paper intends to give context to the aforementioned development by analyzing its background and dynamics of Iran-GCC relations. To this aim, this paper will examine, review and analyze Iranian foreign policy with regard to the security geopolitics of the Persian Gulf. In the course of history, the countries in the region have undergone political, economic, security and even ideological ups and downs, which have led them to become the focus of major powers' attention. The region has also attracted attention due to its decisive role from geopolitical, security and economic points of view. A look at the background of security arrangements in the region establishes that all designs by outside powers' and all extra-regional interference have been futile in bringing security and stability to the region. Iran is among the Persian Gulf littoral states which, due to their strategic location and possession of huge crude oil and natural gas reserves, enjoy a special status. Any form of insecurity in the region will directly impact Iranian interests. Therefore, the strategy of the Iranian government vis-à-vis the security of this important region is based on the expansion of regional cooperation and intra-regional security-building. In this regard, there has been a remarkable growth in political exchanges and interaction at high levels between the Islamic Republic of Iran and other Persian Gulf states.