John Esposito, Leading American Scholar of Islam, Passes Away

John L. Esposito, one of the most influential American scholars of Islam and Middle Eastern politics, has died at the age of 86. Georgetown University said Esposito died in Philadelphia on July 15 from complications following heart surgery.

During a career spanning more than five decades, Esposito helped establish Islamic studies as a major field within American universities and challenged the tendency to treat Islam as a single, inherently hostile political force. His work examined the diversity of Muslim societies, the emergence of modern Islamic movements and the relationships between religion, democracy, violence and Western foreign policy.

Esposito was University Professor Emeritus of Religion and International Affairs and professor of Islamic studies at Georgetown’s Walsh School of Foreign Service. He joined Georgetown in 1993 and founded its Center for Muslim-Christian Understanding, which later became the Prince Alwaleed bin Talal Center. He also established the Bridge Initiative, a research project dedicated to documenting and confronting Islamophobia.

Born in Brooklyn in 1940, Esposito initially trained in Catholic theology before studying Islam under the Palestinian-American scholar Ismail Raji al-Faruqi at Temple University. He later spent nearly two decades teaching religion at the College of the Holy Cross before moving to Georgetown. He remained a practising Catholic and frequently described interreligious understanding as compatible with deep commitment to one’s own faith.

His early books helped introduce English-speaking students to Islam as a living religious and political tradition. Islam: The Straight Path, first published in 1988 and repeatedly revised, became one of the most widely assigned university introductions to Islamic belief, history and institutions.

In Islam and Politics, Esposito examined the return of Islam to public life across the Middle East and Asia. Rather than interpreting every Islamic movement as a rejection of modernity, he distinguished between reformist, electoral, revolutionary and militant currents and emphasised the political conditions in which they developed.

That argument became particularly important in The Islamic Threat: Myth or Reality?, which challenged the idea that the post-Cold War Muslim world represented a unified civilisational enemy of the West. Esposito argued that governments and analysts often used the language of an undifferentiated “Islamic threat” to obscure major differences among states, movements and societies.

With John O. Voll, he wrote Islam and Democracy and Makers of Contemporary Islam, exploring how Muslim intellectuals and political movements sought to reconcile Islamic principles with elections, constitutional government and social reform. Their work rejected the assumption that secularisation along a Western historical path was the only possible foundation for democratic politics.

Following the September 11 attacks, Esposito became an especially prominent public voice. In Unholy War: Terror in the Name of Islam, he examined competing meanings of jihad and the ways violent organisations appropriated Islamic language. He sought to explain militant ideology without allowing its adherents to define Islam or Muslims as a whole.

His 2007 book Who Speaks for Islam? What a Billion Muslims Really Think, written with Dalia Mogahed, drew on more than 50,000 interviews conducted across more than 35 Muslim-majority countries. It used public-opinion data to test widespread claims about Muslim attitudes toward democracy, the United States, religious law and political violence.

Other major works included What Everyone Needs to Know About Islam, The Future of Islam and Islamophobia and the Challenge of Pluralism in the 21st Century. He also served as editor-in-chief of major Oxford reference works, including The Oxford Dictionary of Islam, The Oxford History of Islam and The Oxford Encyclopedia of the Islamic World. Georgetown said he published more than 55 books and over 100 peer-reviewed articles, with his work translated into dozens of languages.

Esposito served as president of both the Middle East Studies Association and the American Academy of Religion and advised the U.S. State Department, international organisations and foreign governments. His importance, however, rested primarily on bringing the study of Islam beyond security analysis: presenting Muslims as political and social actors whose beliefs, disagreements and aspirations required the same historical seriousness afforded to other societies.