Sayyid Vali Reza Nasr (Persian: ولی‌رضا نصر‎, born 20 December 1960 in Tehran) is a leading expert on the Middle East, a best-selling author, Dean of the Johns Hopkins School of Advanced International Studies in Washington, D.C., Senior Fellow in Foreign Policy at Brookings Institution, and columnist for Bloomberg View.

He taught at the University of San Diego and the Naval Postgraduate School and was a Senior Fellow at the Belfer Center at Harvard University and Professor of International Politics at the Fletcher School of Law and Diplomacy at Tufts University prior to being appointed dean of the Johns Hopkins School of Advanced International Studies in March 2012. .

Nasr served as senior advisor to the U.S. special representative for Afghanistan and Pakistan, Ambassador Richard Holbrooke between 2009 and 2011, and is a Life Member of the Council on Foreign Relations.

Vali Nasr is one of America’s leading experts on the Islamic world and Middle East policies. He is internationally renowned and has influenced critical public debates and policy decisions in both the U.S. and Europe. His two books, Shia Revival (2006) and Forces of Fortune (2009) correctly foretold of sectarian conflict following the Iraq War and the potential for an Arab Spring. He has testified before the U.S. Senate on issues relating to the Middle East, advised presidents, senior policy makers, and members of the Congress. He has been featured on the front page of the Wall Street Journal, quoted by Senator John Kerry on the floor of the U.S. Senate, and described as a “national resource” by Richard Haass, the President of the Council on Foreign Relations.