Mohammad Yazdi was an Iranian conservative and principlist cleric who served as the head of Judiciary System of Iran between 1989 and 1999. In 2015, he was elected to lead Iran's Assembly of Experts, defeating Akbar Hashemi Rafsanjani, a former president, by a vote count of 47 to 24.

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.