Đặng Tuyết Mai, also known as Madame Nguyễn Cao Kỳ (4 October 1941 – 21 December 2016) was the former wife of Nguyễn Cao Kỳ, former Republic of Vietnam Air Force commander and politician, who served as Prime Minister of South Vietnam from 1965 to 1967, and then as vice president until he retired from politics in 1971.

[2] While her husband served as prime minister and vice president, she traveled around South Vietnam and wore a military flight suit to show solidarity with the armed forces.

[3] Her daughter, Kỳ Duyên, is a well-known personality in the overseas Vietnamese entertainment industry, usually in the role of MC for musical programs.

During the Fall of Saigon, her husband had made arrangements for her and their children to be evacuated, while he fled by helicopter during Operation Frequent Wind, landing aboard the USS Blue Ridge.

She later divorced Ky and moved back to Vietnam,[4] where she managed the restaurant Phở Ta, which was located at District 3, Ho Chi Minh City.