| Honorific-Prefix: | Oknha |
| Truong Cang | |
| Native Name: | Central Khmer: ទ្រឿង កាង |
| Office: | Foreign Minister of Cambodia |
| Term Start: | 1958 |
| Term End: | 1958 |
| Successor: | Son Sann |
| Office2: | Finance minister of Cambodia |
| Term Start2: | 1957 |
| Term End2: | 1958 |
| Term Start3: | 1959 |
| Term End3: | 1959 |
| Office4: | Cambodian Ambassador to China |
| Term Start4: | 14 May 1964 |
| Term End4: | 4 January 1969 |
| Predecessor4: | Sisowath Sirik Matak |
| Successor4: | Samreth Soth |
| Office5: | Cambodian permanent representative to the United Nations |
| Term Start5: | 1972 |
| Term End5: | 1973 |
| Birth Date: | 1913 |
| Death Date: | 1984 |
| Death Place: | Paris |
Oknha Truong Cang (Central Khmer: ទ្រឿង កាង, also spelled Troueung Kang;[1] 1913 - 1984) was a Cambodian politician and diplomat.
Truong Cang was a Khmer Krom.[2] He served as Minister of Finance (1957-1958 and 1959)[3] and foreign minister (1958) of Cambodia.[4] He was also a member of the High Council of the Throne.
With his efforts, International Court of Justice (ICJ) awarded ownership of Preah Vihear Temple to Cambodia in 1962.[5] [6]
From 1964 to 1969 he was the ambassador to China.[4] In 1967, the Chinese embassy in Cambodia published and distributed Communist propaganda to the Cambodian populace praising the Cultural Revolution, which irritated Norodom Sihanouk. Sihanouk threatened to break off diplomatic relations with China.[7] Truong Cang was about to leave Beijing, but finally was persuaded to stay in China by Chinese premier Zhou Enlai.[8]
From 1972 to 1973 he was the permanent representative to the United Nations.[4]
Truong Cang was regarded as a national hero by Khmer nationalists. In Phnom Penh, Oknya Truong Cang Road was named after him.