This paper explores the determinants of Iran's stance towards the 2017 intra-GCC Crisis, in which the country opposes alterations to the political geography of the Gulf. The author demonstrates how Tehran simultaneously benefits from the loss of Saudi Arabia of some of its allies and stands to lose from increased American involvement in the event that the conflict is prolonged. Despite its long-standing rivalry with Saudi Arabia, many Iranian decision-makers are cautious with regards to the intra-GCC crisis, fearing the possible regional or global fallout of a more involved role. Lacking tangible benefits from the nuclear deal with the 5+1 group of countries, official Iran seems reluctant to involve itself in a crisis which could complicate both its domestic political situation and its foreign relations, especially in light of a hostile US Administration.