Zalmay Mamozy Khalilzad (Pashto: زلمی خلیلزاد Zalmay Khalīlzād; born March 22, 1951) is a U.S. counselor at the Center for Strategic and International Studies (CSIS) and president of Khalilzad Associates, an international business consulting firm based in Washington, D.C. He was the United States Ambassador to the United Nations under President George W. Bush. He has been involved with U.S. policy makers at the White House, State Department and Pentagon since the mid-1980s, and was the highest-ranking Muslim American in the Administration of U.S. President George W. Bush. Khalilzad's previous assignments in the Administration include U.S. Ambassador to Afghanistan and U.S. Ambassador to Iraq.