Chibli Mallat (born May 10, 1960) is a Lebanese international lawyer, legal scholar, and a former candidate for presidency in Lebanon.

Mallat is the son of Nouhad Diab and Wajdi Mallat, the first president of the Lebanese Constitutional Council (Arabic المجلس الدستوري) of Lebanon, from 1994 to 1997, and has three sisters. His namesake grandfather was known across the Arab world as ‘the Poet of the Cedars’. His granduncle Tamer Mallat was a judge and a poet, whose decisions and poetry he rediscovered and published; he also edited a selection of his father’s writings in a bilingual French and Arabic book.

He is married to Nayla Chalhoub, and they have two adult sons. He published an illustrated book for children in 1997, Aventures a Beyrouth, with his son.

Educated in Lebanon, the United States and Europe, Mallat received his PhD from the law department of London University’s School of Oriental and African Studies (SOAS) in 1990.

Iraq has been a focus for him since 1982 as key to change in the Middle East, and he founded the International Committee for a Free Iraq (ICFI) in 1991 with Edward Mortimer and Ahmad Chalabi to seek the end of dictatorship in Baghdad. The ICFI brought together about a hundred Iraqi and international personalities, including leading US senators like Claiborne Pell, then chairman of the Senate Foreign Relations Committee, and John McCain, as well as British MP David Howell, then chairman of the Select Committee on Foreign Affairs, and respected Arab public figures like Saad Eddin Ibrahim and Adonis, see Adunis. Many of the committee’s Iraqi members became the leaders of Iraq after the end of Baathist dictatorship in 2003, including Mohammed Bahr al-Uloum as the first president of the Iraqi Governing Council, Jalal Talibani as president and Hoshyar Zebari as Foreign Minister. Mallat was opposed to the US-led invasion, and sought with the support of then US Deputy Secretary of Defence Paul Wolfowitz an alternative Security Council Resolution that would have declared Saddam Hussein’s presidency illegitimate and advocated the deployment of human rights monitors in Iraq during the transition to democracy.

From 1984 to 1985, he held research and teaching positions at the University of California Berkeley School of Law (Boalt Hall) in 1984-85 and at the School of Oriental and African Studies, where as a lecturer in Islamic Law he received his first tenured position in 1992. He taught at the Islamic University in Lebanon in 1995-96, and was twice visiting professor at the University of Lyon and at the University of Virginia School of Law. In 2000, he received professorial tenure at Saint Joseph University (USJ) in Lebanon and was appointed a year later to the first EU Jean Monnet Chair in European Law in the Middle East.

In 1995, he initiated a campaign against Saddam Hussein with officials in Kuwait, London and Washington that developed into INDICT, a nongovernmental organisation he helped found in Britain in 1996. By 1998, INDICT had received open support in the American Congress and in the British Parliament, and was embraced by then US President Bill Clinton and British Prime Minister Tony Blair. The campaign laid the ground for a case against Saddam Hussein in Belgium in 2002, and his eventual trial in Iraq in 2005. A third case was won against Muammar Gaddafi in Beirut courts for the families of the historic leader of the Shi’i community Musa al-Sadr and his two companions, journalist Abbas Badreddin and cleric Muhammad Ya`qub, who disappeared in Libya upon their official invitation by Gaddafi in August 1978.

In 12 February 2003, he won a judgement in the case of Victims of Sabra and Shatila v. Ariel Sharon et al., under the law of universal jurisdiction in Belgium which resulted in Belgium removing the court’s jurisdiction. He visited Iraq in late 2003 and again in early 2004 to accelerate the recognition of the Iraqi Governing Council as the official government of Iraq, a move opposed by Paul Bremer and Kofi Annan.

In 2006-2007, he spent one year at Princeton University where he was a Visiting Professor at the Woodrow Wilson School, Fellow in the Program in Law and Public Affairs, Fellow in the University Center for Human Values, Fellow in the Program in International and Regional Studies and a Distinguished Visitor in the Bobst Center for Peace and Justice.[9] A became a professor of Middle Eastern Politics and Law at the University of Utah since 2007 and a Presidential Professor in 2009. He is now an emeritus professor.

Mallat was appointed in 2011 Custodian of the Two Holy Mosques Visiting Professor of Islamic Legal Studies at Harvard Law School. In Summer 2014, he helped the Iraqi president Fouad Masum and Parliamentary Speaker Salim al-Jabouri construct the constitutional argument that put an end to the Prime Ministership of Nouri al-Maliki.

He taught in Fall 2012 at Yale Law School as Visiting Professor of Law and Oscar M. Ruebhausen Distinguished Senior Fellow. In Spring 2015, he was a visiting professor at the Ecole des Hautes Etudes en Sciences Sociales (EHESS) in Paris.

In 2016, he helped found Humanist Lebanon, organizing regular demonstrations in the centre of Beirut to end the presidential void in the name of the Constitution.

In 2017, he resigned his full-time positions at Saint Joseph’s University and at the University of Utah, but remained on the University of Utah’s law faculty as Emeritus Presidential Professor of Law. In 2023, he was invited as visiting senior fellow at the school of law of Sciences-Po in Paris to develop his work on comparative constitutional law.

Mallat is the author or editor of some forty books, and has published dozens of scholarly articles and book chapters.

Academic collaborative work has seen him serving as a joint founder and general editor of the Yearbook of Islamic and Middle Eastern Law, now at Brill, a series on ‘Horizons Européens’ for the Centre d’Etudes de l’Union Européenne at Saint Joseph University, and a series on Islamic and Middle Eastern Law at Kluwer Law International as director of the Centre of Islamic and Middle Eastern Law at the School of Oriental and African Studies. He has also contributed several entries and chapters to specialised encyclopaedias of Islamic and Middle Eastern Studies, and of comparative law. In 2014, he helped found and became the commissioning editor of Bada’e’, a niche publishing house of books in Arabic, French and English on the Middle East.

In his work on Islamic and Middle Eastern law, he has engaged scholarship from the West and from the Middle East in a search for a common language of human rights and the rule of law to be conveyed from within the uniquely rich legal tradition of the Middle East from Hammurabi to the present. His first book, the Renewal of Islamic Law, which focused on the legal works of the most innovative Islamic scholar of the 20th century, the Iraqi Mohammad Baqir al-Sadr, received the North America Middle East Studies Association’s annual prize, the Albert Hourani Book Award. Its Arabic version, published in 1998, circulated underground in Iraq until the demise of Saddam Hussein in 2003, and was reprinted several times since. The book was reviewed in over a hundred academic and press outlets, and revealed to the West a humanist scholarship at the highest intellectual level in Najaf. In 2009, he published Iraq- Guide to Law and Policy at Aspen/Kluwer Law International.

His Introduction to Middle Eastern Law, was published in 2007, and expanded the field of Islamic law to include the Middle East pre-Islamic legal tradition as an important component for legal research, and to prominently feature case law as a novel and essential focus to understand the law applied in everyday’s life.

In 2023, he published an extensive treatise on Saudi Arabian Law at Oxford University Press, The Normalization of Saudi Law.