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.