Representatives of the U.S.A. to the European Union, with the rank and status of Ambassador Extraordinary and Plenipotentiary
This title of this position, which began as "Representative to the European Communities, with the rank and status of Ambassador Extraordinary and Plenipotentiary" changed on May 9, 1994 to "Representative to the European Union, with the rank and status of Ambassador Extraordinary and Plenipotentiary."
- William Walton Butterworth (1961-1962)
- John Wills Tuthill (1962-1966)
- John Robert Schaetzel (1966-1972)
- Joseph Adolph Greenwald (1972-1976)
- Deane Roesch Hinton (1976-1979)
- Thomas Ostrom Enders (1979-1981)
- George Southall Vest (1981-1985)
- John William Middendorf II (1985-1987)
- Alfred Hugh Kingon (1987-1989)
- Thomas Michael Tolliver Niles (1989-1991)
- James F. Dobbins (1991-1993)
- Stuart C. Eizenstadt (1993-)
- A. Vernon Weaver (1996-1999)
- Richard L. Morningstar (1999-)
- Rockwell Anthony Schnabel (2001-2005)
- C. Boyden Gray (2006-2007)
- Kristen Silverberg (2008-)