| Ambassador of the United States to Vietnam | |
|---|---|
| Đại sứ Hoa Kỳ tại Việt Nam | |
 Seal of the United States Mission to Vietnam | |
 | |
| Nominator | The President of the United States |
| Inaugural holder | Pete Peterson as Ambassador Extraordinary and Plenipotentiary |
| Formation | April 11, 1997 |
| Website | U.S. Embassy - Hanoi |
The United States ambassador to Vietnam (Vietnamese: Đại sứ Hoa Kỳ tại Việt Nam) is the chief American diplomat to the Socialist Republic of Vietnam. After the First Indochina War and the defeat of the French domination over Vietnam, the country was split into North and South Vietnam (the Republic of Vietnam) at the Geneva Conference of 1954. The United States did not recognize North Vietnam and thus had no diplomatic relations with the country. After the reunification of Vietnam in 1976, there followed a period of 20 years in which the United States had no diplomatic relations with Vietnam.
The U.S. opened a Liaison Office in Hanoi on January 28, 1995. Diplomatic relations were established July 11, 1995, and the embassy in Hanoi was established with L. Desaix Anderson as chargé d’affaires ad interim.