Masoumeh Ebtekar, born Niloufar Ebtekar on 21 September 1960 in Tehran, is an Iranian immunologist, academic, and reformist politician whose public life has spanned the seizure of the United States embassy in 1979 and senior posts in the Islamic Republic. She is widely known outside Iran as the English-speaking spokeswoman for the students who held American diplomats hostage for 444 days, and inside Iran as the first woman to hold a cabinet-level post after the 1979 revolution.
Her early years were shaped by time in the United States. Her father, Taghi Ebtekar, a mechanical engineer, studied at the University of Pennsylvania, and the family lived for roughly six years in Upper Darby Township, outside Philadelphia. Ebtekar attended elementary school there and acquired fluent, American-accented English. The family returned to Iran before the revolution. She later changed her given name from Niloufar to Masoumeh. After the revolution she studied laboratory science at Shahid Beheshti University, earning a bachelor’s degree in the mid-1980s, then completed a master’s degree and, in 1995, a doctorate in immunology at Tarbiat Modares University in Tehran. She has remained on the faculty there, teaching subjects that include cytokines, viral immunology, and related fields, and has published scientific papers alongside writings on civil society, women, and the environment.
In November 1979, as a university student in her late teens, she joined the Muslim Student Followers of the Imam’s Line who overran the U.S. embassy compound in Tehran. Fifty-two Americans were held until January 1981. Because of her English, she became the group’s principal spokeswoman and translator for foreign journalists. Western media nicknamed her Mary, Sister Mary, or Screaming Mary after her televised appearances. She presented the students’ demands, which centered on the return of the deposed Shah Mohammad Reza Pahlavi from the United States and on grievances over the 1953 coup that had restored him to power, and she arranged interviews with hostages. Former hostages and U.S. officials later described the captivity as including solitary confinement, blindfolding, threats, and physical mistreatment; Ebtekar’s role was that of public advocate and intermediary for the captors, who acted with the approval of Ayatollah Ruhollah Khomeini. She has not offered a formal apology. In later interviews she has described the takeover as a response to perceived U.S. interference and, at times, as the course Iran took under the circumstances of the revolution. In 1981 she married Mohammad Hashemi; they have two sons. That same year she became editor-in-chief of the English-language daily Kayhan International, appointed while Mohammad Khatami was associated with the paper’s oversight.
Her political career developed inside the reformist current that gained influence in the 1990s. She was active in women’s networks and headed a coordinating office for women’s non-governmental organizations ahead of the 1995 Beijing conference. In 1997 President Mohammad Khatami appointed her vice president and head of the Department of the Environment, making her the first woman in an Iranian cabinet since the revolution and the first female vice president of the Islamic Republic. She held the post through both of Khatami’s terms, until 2005. During those years the department expanded its staff and provincial offices, promoted natural-gas vehicles and cleaner fuels in a country facing severe urban air pollution, restricted logging in some old-growth forests, enlarged protected areas, and sought to insert environmental criteria into national development plans. In 2006 the United Nations Environment Programme named her a Champion of the Earth for policy leadership. Critics noted that Iran’s environmental problems, including air quality, water scarcity, and industrial pollution, remained acute, and that her authority was limited by other ministries and by the broader political system.
After Mahmoud Ahmadinejad’s election she left the executive branch and, in 2006–2007, won a seat on the Tehran city council as a reformist candidate, serving until 2013 and focusing on an environment committee. She was affiliated with the Islamic Iran Participation Front until that party was restricted, and later with the Union of Islamic Iran People Party. When Hassan Rouhani became president in 2013 he returned her to the Department of the Environment as vice president, a post she held until 2017. She then served as vice president for women and family affairs from 2017 until 2021, for a total of roughly sixteen years in vice-presidential roles across three administrations. In the women’s portfolio she operated within the constraints of Iranian law on personal status, dress, and political participation, advocating incremental changes while remaining inside the system’s formal bounds. Internationally she continued to appear at environmental and women’s forums.
Ebtekar’s trajectory illustrates a pattern common among some early revolutionaries who later aligned with reformists: participation in the radical phase of 1979, followed by institutional roles under presidents who sought limited openings toward civil society and limited engagement with the outside world. Supporters credit her with normalizing a woman’s presence at cabinet level and with measurable, if incomplete, environmental institution-building. Detractors, especially in the United States, emphasize her unrepentant association with the embassy seizure, which they regard as a terrorist act that inflicted lasting harm on the hostages and ruptured relations for decades. In 2026 U.S. authorities revoked the lawful permanent resident status of one of her sons and his immediate family, citing her role in the hostage crisis; the episode revived public argument over whether later governmental service erases or merely follows earlier actions. She has remained a professor in Tehran and a recognizable figure in reformist circles, her career still defined by the contrast between the teenager who spoke for the embassy occupiers and the official who later managed environment and women’s portfolios under elected presidents.