The Shi’i movement in Indonesia continues to face challenges, including social stigma and episodes of violence, stemming from negative societal perceptions. However, since Indonesia’s democratic transition in 1998, the number of Shi’i adherents and the scope of their networks have steadly expanded. The development of Shi’a in Indonesia has been shaped primarily by two factors: the 1979 Iranian Revolution and the consolidation of democratic governance following the Indonesian Reformation. Shi’i Islam differs fundamentally from the Ahmadi movement. Whereas the latter emerged in the modern period, Shi’a has been integral to Islamic history since its earlier formation. Its origin dated back to the political disputes surrounding Ali bin Abi Talib, the fourth Islamic caliph, and Muawiyah bin Abu Sufyan, the governor of Syria and founder of the Umayyad Dynasty. The recent growth of Shi’i communities in Indonesia, as well as the rise of anti-Shi’i sentiments, is closely linked to broader geopolitical developments in the Middle East and beyond. In particular, it reflects the intensifying rivalry between Saudi Arabia, regarded as the center of Wahhabism and a key ally of the United States, and Iran, which is frequently positioned as its geopolitical adversary. As the sociopolitical landscape in Indonesia continues to evolve, so do too the dynamics of the Shi’i movement within the country. In this transnational competition, both Iran and Saudi Arabia engage not only in diplomatic and ideological confrontation, but also in the mobilization of preachers, funding, and recruitment through educational scholarships in Muslim-majority countries like Indonesia, where Sunni Muslims predominate. Many new adherents of Shi’a in Sunni-majority countries are former Sunnis. These developments have elicited ambivalent reactions, producing both organized anti-Shi’i mobilization and new opportunities for Shi’i communities to expand their presence. This paper examines the dual dimensions of Shi’i presence in Indonesia, including the negative responses and the politics of its accommodations. It seeks to explain why and how these dynamics coexist, the extent to which this contestation has manifested, and how it has implicated the role of religion in Indonesia’s democratic future and religious diversity.