Keith Hennessey is an American economist and former political advisor who served as the Assistant to the U.S. President for Economic Policy and Director of the National Economic Council. He was appointed to the position in November 2007 by President George W. Bush, and served until the end of Bush's second term in office. Hennessey had served in the White House since August 2002, when he was appointed to the position of Deputy Assistant to the President for Economic Policy and Deputy Director of the U.S. National Economic Council.