成泰帝
Dục Đức (, ; born Nguyễn Phúc Ưng Ái, 23 February 1852 – 6 October 1883), was Emperor of Vietnam for three days, from 20–23 July 1883. He was the fifth emperor of the Nguyễn dynasty and father of Emperor Thành Thái, who ruled from 1889 to 1907.