Terrorist financing by Iran is a multifaceted issue involving state sponsorship, logistical support, and financial transfers to a network of proxy groups and terrorist organizations across the Middle East and beyond. This support destabilizes the region, fuels conflicts, and undermines international security. Iran’s primary method of financing terrorism involves the Islamic Revolutionary Guard Corps (IRGC), particularly its Quds Force, which acts as the main conduit for financial and material assistance to terrorist groups. The Quds Force utilizes various mechanisms to transfer funds, including front companies, charities, and informal financial networks such as hawala systems, to evade international sanctions and scrutiny. These networks facilitate the movement of money without traditional banking systems, making it difficult to trace and disrupt the flow of funds. Hezbollah in Lebanon is arguably the most prominent beneficiary of Iranian financial support. Iran provides Hezbollah with substantial funding, estimated to be in the hundreds of millions of dollars annually. This financial lifeline allows Hezbollah to maintain a powerful military force, provide social services, and exert significant political influence in Lebanon. This support also enables Hezbollah to engage in terrorist activities beyond Lebanon, including attacks against Israeli and Western targets. Hamas, the Palestinian Islamist group controlling the Gaza Strip, also receives significant financial and material support from Iran. This aid strengthens Hamas’s military capabilities, enabling it to launch rockets and conduct other attacks against Israel. Iran’s backing allows Hamas to maintain its control over Gaza and pursue its agenda of confrontation with Israel. Beyond Hezbollah and Hamas, Iran provides support to various other militant groups in Iraq, Syria, and Yemen, including Shia militias and Houthi rebels. This support fuels sectarian conflicts, exacerbates regional instability, and allows Iran to project its power across the region. The financial assistance enables these groups to recruit, train, and equip fighters, carry out attacks, and challenge established governments. The consequences of Iran’s terrorist financing are far-reaching. It destabilizes entire countries, contributes to humanitarian crises, and poses a significant threat to international peace and security. The funding enables terrorist groups to plan and execute attacks, recruit new members, and spread their ideologies. Countering Iran’s support for terrorism requires a multifaceted approach that includes sanctions, intelligence gathering, law enforcement, and international cooperation to disrupt financial networks and hold Iran accountable for its actions. Targeting the IRGC and Quds Force, in particular, is crucial to disrupting the flow of funds to terrorist groups.