The United States ambassador to the United Nations International Organizations in Vienna is the diplomatic representative of the United States to those organizations of the United Nations Office in Vienna.

Organizations include: the International Atomic Energy Agency, the Comprehensive Nuclear-Test-Ban Treaty Organization, the United Nations Office for Outer Space Affairs and the United Nations Office on Drugs and Crime, among others. The position is formally split into two permanent representative-level positions, titled United States Permanent Representative to the Vienna Office of the United Nations and United States Permanent Representative to the International Atomic Energy Agency, each of which requires a separate Senate confirmation. Because the representative holds the rank of an ambassador, they are commonly referred to by this title.

Representatives References from the State Department, unless otherwise indicated. Richard S. Williamson – Political appointee Appointed: May 17, 1983 Terminated mission: January 15, 1985 Bruce Chapman – Political appointee Appointed: August 1, 1985 Terminated mission: October 16, 1988 Michael H. Newlin – Career FSO Appointed: August 12, 1988 Terminated mission: September 6, 1991 John B. Ritch III – Political appointee Appointed: November 22, 1993 Terminated mission: January 1, 2001 Kenneth C. Brill – Career FSO Appointed: October 1, 2001 Terminated mission: June 29, 2004 Gregory Schulte – Political appointee Appointed: June 29, 2005 Terminated mission: June 20, 2009 Glyn T. Davies – Career FSO Appointed: August 12, 2009 Terminated mission: November 30, 2011 Joseph Macmanus – Career FSO Appointed: September 27, 2012 Terminated mission: August 4, 2014 Laura Holgate – Political appointee Appointed: June 27, 2016 Presentation of Credentials: July 18, 2016 Termination of Mission: January 18, 2017 Jackie Wolcott – Political appointee Appointed: September 26, 2018 Presentation of Credentials: October 23, 2018 Termination of Mission: January 18, 2021 Laura Holgate - Political appointee Appointed (Vienna Office): December 18, 2021 Presentation of Credentials (Vienna Office): February 1, 2022 Appointed (IAEA): March 29, 2022 Presentation of Credentials (IAEA): April 8, 2022 Termination of Mission: January 20, 2025 Preston Wells Griffith III Political appointee Appointed (Vienna Office): August 7, 2026 Presentation of Credentials (Vienna Office): September 3, 2026 Appointed (IAEA): August 7, 2026 Presentation of Credentials (IAEA): September 5, 2026 Termination of Mission:

References

State Department, Chiefs of Mission for the U.N. Vienna Office