The United States Information Agency (USIA) was a United States agency devoted to creating materials promoting US policy domestically and overseas.

In 1999, USIA's broadcasting functions were moved to the newly created Broadcasting Board of Governors, and its exchange and non-broadcasting information functions were given to the newly created Under Secretary of State for Public Diplomacy and Public Affairs at the U.S. Department of State.

The agency was previously known overseas as the United States Information Service (USIS).