| Post: | Ambassador |
| Body: | Cambodia to the United States |
| Native Name: | Central Khmer: ឯកអគ្គរាជទូតខ្មែរប្រចាំនៅសហរដ្ឋអាមេរិក |
| Insignia: | Royal arms of Cambodia.svg |
| Insigniasize: | 120px |
| Insigniacaption: | Royal Arms of Cambodia |
| Incumbent: | Chum Sounry |
| Residence: | Washington, D.C. |
| Termlength: | No fixed term |
| Inaugural: | Nong Kimny |
| Website: | Royal Embassy of Cambodia - Washington, D.C. |
The Cambodian ambassador to the United States is the official representative of the government of Cambodia in Phnom Penh to the government of the United States in Washington, D.C.
| Diplomatic agrément | Diplomatic accreditation | Ambassador | Observations | Head of state | President |
|---|---|---|---|---|---|
| LEGATION OPENED | Harry S. Truman | ||||
| Nong Kimny | [1] | ||||
| LEGATION RAISED TO EMBASSY | |||||
| Nong Kimny | |||||
| Sonn Voeunsai | He was director general of the Royal Railways of Cambodia. In May 1965, the Cambodian Government asked for agreement for their newly appointed Ambassador in Paris, Mr Sonn Voeunsai, to be accredited also in London. (accredited 26 Nov. 1965; resident in Paris) | Cheng Heng | Richard Nixon | ||
| Name changed from Cambodia to KHMER REPUBLIC | |||||
| Um Sim | Lon Nol | ||||
| EMBASSY CLOSED | Norodom Sihanouk | Gerald Ford | |||
| Houth Var | Bill Clinton | ||||
| Roland Eng | (* 1947) In 1996 he was Ambassador to Thailand. | ||||
| Ek Sereywath | Norodom Sihamoni | George W. Bush | |||
| Hem Heng | Barack Obama | ||||
| Chum Bunrong | |||||
| Chum Sounry | |||||