The counselor of the United States Department of State is a position within the United States Department of State that serves the secretary of state as a special advisor and consultant on major problems of foreign policy and who provides guidance to the appropriate bureaus with respect to such matters. The counselor conducts special international negotiations and consultations, and also undertakes special assignments from time to time, as directed by the secretary of state. Currently, the counselor holds under law a rank equivalent to that of under secretary of state. Unlike the other under secretaries of state, the counselor currently does not require Senate confirmation. Historically, the role was appointed by the president, by and with the advice and consent of the United States Senate as authorized by 22 U.S. Code § 2651a as one of four "other senior officials."

The United States Department of State (DOS), or simply the State Department, is an executive department of the U.S. federal government responsible for the country's foreign policy and relations. Equivalent to the ministry of foreign affairs of other nations, its primary duties are advising the U.S. president on international relations, administering diplomatic missions, negotiating international treaties and agreements, and representing the U.S. at the United Nations. The department is headquartered in the Harry S Truman Building, a few blocks from the White House, in the Foggy Bottom neighborhood of Washington, D.C.; "Foggy Bottom" is thus sometimes used as a metonym.