David A. Kay (born c. 1940) is a weapons expert, political commentator, and senior fellow at the Potomac Institute for Policy Studies. He is best known for his time as United Nations Chief Weapons Inspector following the first Gulf War and for leading of the Iraq Survey Group's search for weapons of mass destruction following the 2003 invasion of Iraq. Upon presentation of the Group's finding that there had been significant errors in pre-war intelligence concerning Iraq's weapons programs, Kay resigned. The ensuing controversy served as impetus for the formation of the Iraq Intelligence Commission.
Kay received a Bachelor of Arts degree from the University of Texas at Austin, and also a master's in International Affairs and a Ph.D. from Columbia University's School of International and Public Affairs.
Kay worked for the International Atomic Energy Agency (IAEA) in an administrative position as head of the Evaluation Section and, as recommended by the US Mission to that Agency, he was named the UN Chief Weapons Inspector from 1991 to 1992. Following that, he was Vice President of Science Applications International Corporation (SAIC) from 1993 to 2002. While at SAIC, he worked alongside Steven Hatfill until March 2002. Then, he was appointed as a Special Advisor for Strategy regarding Iraqi Weapons of Mass Destruction (WMD) Programs. He received the International Atomic Energy Agency's Distinguished Service Award and the U.S. Secretary of State's Commendation. (SAIC was contracted by the U.S. to build prototype Mobile Weapons Laboratories in fall of 2001.)