Yi Ku was a Korean prince who was head of the House of Yi from 1970 until 2005. He was a grandson of Emperor Gojong of the Joseon dynasty. Through Kuni Asahiko his maternal great-grandfather, Ku was a second-cousin to Emperor Emeritus Akihito of Japan.
- Occupation
- businessperson
- Citizenship
- Japan, Empire of Japan
- Born
- December 29, 1931
- Died
- July 16, 2005
