Nguyễn Lưu Viên
| Doctor Nguyễn Lưu Viên | |
|---|---|
| Dr. Viên in 1967 | |
| Deputy Prime Minister of South Vietnam | |
| In office 1 September 1969 – 14 April 1975 | |
| Prime Minister | 
 | 
| Preceded by | Trần Thiện Khiêm | 
| Succeeded by | 
 | 
| In office 13 July 1966 – 28 October 1967 | |
| Prime Minister | Nguyễn Cao Kỳ | 
| Preceded by | |
| Succeeded by | Phạm Đăng Lâm | 
| In office 4 November 1964 – 16 February 1965 | |
| Prime Minister | 
 | 
| Preceded by | |
| Succeeded by | |
| Minister of Internal Affairs of South Vietnam | |
| In office 4 September 1964 – 14 February 1965 | |
| Prime Minister | 
 | 
| Preceded by | Lâm Văn Phát | 
| Succeeded by | Nguyễn Hòa Hiệp | 
| Personal details | |
| Born | 21 November 1919 Trà Vinh province, Cochinchina, French Indochina | 
| Died | 18 September 2017 (aged 97) Springfield, Virginia, U.S. | 
| Political party | National Social Democratic Front | 
| Other political affiliations | Bloc for Liberty and Progress (1960–1963) | 
| Spouse | Nguyễn Thị Trinh | 
| Children | 3 sons | 
| Parents | 
 | 
| Relatives | Nguyễn Khánh (nephew) | 
| Alma mater | Hanoi Medical University (M.D.) | 
Nguyễn Lưu Viên (Vietnamese pronunciation: [ŋwiən˦ˀ˥ liw˧˧ viən˧˧]; 21 November 1919 – 18 September 2017) was a South Vietnamese doctor and politician who served as Deputy Prime Minister of South Vietnam under various prime ministers. He also served as Minister of Internal Affairs of South Vietnam under Prime Ministers Nguyễn Khánh and Trần Văn Hương.