Lee Ui-bang (Korean: 이의방, ? - 1174) was a Korean Goryeo dynasty soldier and politician. His father-in-law was Emperor Kangjong, grandfather of Emperor Goryo Kojong. He was killed by Emperor Uijong in 1170.
In 1170 Yi joined the Goryeo warrior rebellion. In 1174, he was murdered by Jeong Kyun.
- other name was Joseon Taejo.