List of U.S. Ambassadors to Cambodia

  1. Embassy Fact Sheet
  2. List of U.S. Ambassadors to Cambodia

William A. Heidt
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: September 14, 2015
Presentation of Credentials: December 2, 2015


William E. Todd
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: April 2, 2012
Presentation of Credentials: June 8, 2012
Termination of Mission: Left post August 14, 2015


Carol A. Rodley
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: October 24, 2008
Presentation of Credentials: January 20, 2009
Termination of Mission: Left post September 29, 2011


Joseph A. Mussomeli
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: June 27, 2005
Presentation of Credentials: September 22, 2005
Termination of Mission: Left post August, 2008


Charles A. Ray
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: November 15, 2002
Presentation of Credentials: January 4, 2003
Termination of Mission: Left post July 11, 2005


Kent M. Wiedemann
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: June 7, 1999
Presentation of Credentials: August 31, 1999
Termination of Mission: Left post May 16, 2002


Kenneth M. Quinn
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: December 12, 1995
Presentation of Credentials: March 28, 1996
Termination of Mission: Left post July 25, 1999


Charles H. Twining
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: May 13, 1994
Presentation of Credentials: May 17, 1994
Termination of Mission: Left post November 20, 1995


John G. Dean
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: March 14, 1974
Presentation of Credentials: April 3, 1974
Termination of Mission: Left post April 12, 1975
Note: Commissioned to the Khmer Republic.
Note: Embassy Phnom Penh was closed on April 12, 1975, following the evacuation of all U.S. personnel.
Note: The U.S. Mission to Cambodia was established November 11, 1991, with Charles H. Twining as U.S. Representative.


Emory C. Swank
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: September 3, 1970
Presentation of Credentials: September 15, 1970
Termination of Mission: Left post September 5, 1973
Note: Continued to serve, without accreditation, after the proclamation of the Khmer Republic.


Randolph A. Kidder
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: July 9, 1964
Note: Took oath of office and proceeded to post, but did not present credentials; left post, September 18, 1964.
Note: Alf E. Bergesen was serving as Chargé d’Affaires ad interim when Cambodia severed diplomatic relations with the U.S., May 3, 1965. Embassy Phnom Penh was reestablished August 16, 1969, with Lloyd M. Rives as Chargé d’Affaires ad interim.


Philip D. Sprouse
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: June 28, 1962
Presentation of Credentials: August 20, 1962
Termination of Mission: Left post March 3, 1964


William C. Trimble
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: February 16, 1959
Presentation of Credentials: April 23, 1959
Termination of Mission: Left post June 8, 1962


Carl W. Strom
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: October 11, 1956
Presentation of Credentials: December 7, 1956
Termination of Mission: Left post March 8, 1959
Note: Commissioned during a recess of the Senate; recommissioned following confirmation on January 29, 1957.


Robert McClintock
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: August 18, 1954
Presentation of Credentials: October 2, 1954
Termination of Mission: Left post October 15, 1956


Donald R. Heath
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: June 25, 1952
Presentation of Credentials: July 12, 1952
Termination of Mission: Superseded October 2, 1954
Note: Also accredited to Laos and Vietnam; resident at Saigon. During Heath’s tenure as non-resident Minister, Legation Phnom Penh was opened to the public, Nov 14, 1950, with Don V. Catlett as Chargé d’Affaires ad interim. Thomas J. Corcoran was serving as Chargé d’Affaires ad interim when Legation Phnom Penh was raised to Embassy status, June 25, 1952.