The Assembly of Experts, also translated as the Assembly of Experts of the Leadership or as the Council of Experts, is the deliberative body empowered to appoint the Supreme Leader of Iran. All directly elected members must first be vetted by the Guardian Council.

The supreme leader of Iran ), also referred to as supreme leader of the Islamic Revolution, but officially called the Supreme Leadership Authority, is the head of state and the highest political and religious authority of the Islamic Republic of Iran. The armed forces, judiciary, state television, and other key government organizations such as the Guardian Council and Expediency Discernment Council are subject to the Supreme Leader. According to the constitution, the Supreme Leader delineates the general policies of the Islamic Republic, supervising the legislature, the judiciary, and the executive branches. The current lifetime officeholder, Seyyed Ali Hosseini Khameneh known as Ali Khamenei, has issued decrees and made the final decisions on the economy, the environment, foreign policy, education, national planning, and other aspects of governance in Iran. Khamenei also makes the final decisions on the amount of transparency in elections, and has dismissed and reinstated presidential cabinet appointees. The Supreme Leader is legally considered "inviolable", with Iranians being routinely punished severely for questioning or insulting him.