The Reformists (Persian: اصلاح‌طلبان, romanized: Eslâh-Talabân) are a political faction in Iran. Iran's "reform era" is sometimes said to have lasted from 1997 to 2005—the length of President Mohammad Khatami's two terms in office. The Council for Coordinating the Reforms Front is the main umbrella organization and coalition within the movement; however, there are reformist groups not aligned with the council, such as the Reformists Front. Masoud Pezeshkian, a reformist, was elected president following the 2024 Iranian presidential election, and was subsequently confirmed by Supreme Leader Ali Khamenei on 28 July.

The 2nd of Khordad Movement usually refers not only to the coalition of 18 groups and political parties of the reforms front but to anyone else who was a supporter of the 1997 reform programs of Khatami.

The reforms front consists of several political parties, some of the most famous including the following:

Some Iranian intellectuals were involved in establishing a foundation for the movement. Perhaps the most influential figure was Abdolkarim Soroush. For many years, he was the only voice publicly criticizing the regime's policies. His regular lectures at Tehran University used to enjoy the attendance of many of the Iranian students who later generated the 2nd of Khordad movement. Many famous figures of the movement belong to the Soroush circle. However, at the rise of 2nd of Khordad movement, Saeed Hajjarian acted as the main theorist behind the movement and the main strategist in Khatami's camp.

The movement has been described as changing the key terms in public discourse: emperialism (imperialism), mostazafen (poor), jehad (jihad), mojahed (mujahideen), shahed (martyrdom), khish (roots), enqelab (revolution) and Gharbzadegi (Western intoxication), to some modern terms and concepts like: demokrasi (democracy), moderniyat (modernity), azadi (liberty), barabari (equality), jam'eh-e madani (civil society), hoquq-e beshar (human rights), mosharekat-e siyasi (political participation), Shahrvandi (citizenship), etc.

The core of the reform movement is said to be made up of Islamic leftists disqualified from running for office as they were purged and generally disempowered by Islamic conservatives following the death of Imam Khomeini in 1989. Islamic leftists turned reformists include Abdolkarim Soroush, Saeed Hajjarian, Akbar Ganji, Ali Akbar Mohtashami-Pur, Ebrahim Asgharzadeh, Mohsen Mirdamadi, Mir-Hossein Mousavi, and the Anjoman-e-Eslami (Islamic Association) and Office for Strengthening Unity student groups.

Many institutions support the movement of reformation such as organizations like Organization of the Mojahedin of the Islamic Revolution (OMIR) and the Majma’a Rohaneeyoon Mobarez or the Forum of the Militant Clergy, or Office for Fostering Unity and Freedom Movement of Iran. There were also many media outlets in support like the Iran-e-farda and kian magazinez.

Khatami's support is said to have cut across regions and class lines with even some members of the Islamic Revolutionary Guard Corps, Qom seminarians and Basij members voting for him. The core of his electoral support, however, came from the modern middle class, college students, women, and urban workers. For example, by 1995, about half of Iran's 60.5 million people were too young to be alive at the time of the Islamic Revolution.