31st Chief of Staff of the Republic of Korea Air Force (General)

| Life | 1952 |
| Era | 현대 |
| Clan | 함평 이씨 |
Yi Gye-hun (born 1952) is a Korean military officer who served as the 31st Chief of Staff of the Republic of Korea Air Force, introduced as a descendant of the Champan-gong branch of the Hampyeong Yi. Born on 22 February 1952, he graduated from Gwangju Jeil High School in 1970 and was commissioned from the 23rd class of the Air Force Academy in 1975.
He built his career in air defense artillery, serving as commander of the 8th Fighter Wing (Brigadier General), deputy commander of the Air Operations Command and director of doctrine and training of the Joint Chiefs of Staff Operations Headquarters (Major General). He later served as vice president of the National Defense University, Director of Defense Intelligence and of the JCS Intelligence Headquarters (Lieutenant General), and Vice Chairman of the Joint Chiefs of Staff.
He was Air Force Chief of Staff (General) from December 2008 to October 2010. His honors include a Minister of National Defense commendation, a presidential commendation, the Order of National Security Merit Cheonsu and Tongil Medals, and a US Legion of Merit.
Yi Gye-hun served as commander of the 8th Fighter Wing, deputy commander of the Air Operations Command, JCS director of doctrine and training and vice president of the National Defense University before becoming Director of Defense Intelligence and head of the JCS Intelligence Headquarters in 2007.
After serving as Vice Chairman of the Joint Chiefs of Staff in 2008, he became Air Force Chief of Staff in December that year.
He graduated from the Air Defense Artillery School, earned a bachelor's in public administration from the National Defense University and a master's in public administration from Dongguk University. He received the Cheonsu Medal in 2003 and the Tongil Medal and a US Legion of Merit in 2010.