List of ambassadors of the United States to the European Union

This is a list of United States ambassadors to the European Union. The formal title of this position is Representative of the United States of America to the European Union, with the rank and status of Ambassador Extraordinary and Plenipotentiary. Prior to May 9, 1994, the position was named Representative of the United States of America to the European Communities, with the rank and status of Ambassador Extraordinary and Plenipotentiary.