Lee Sang-deuk (Korean: 이상득; 29 November 1935 – 23 October 2024) was a South Korean politician and businessman.

He was well known as the older brother of the former South Korean president, Lee Myung-bak.

He was a member of the conservative Saenuri Party in the National Assembly.

He was convicted of bribery in 2013, and sentenced to a prison sentence of one year and two months.

[1] Lee died on 23 October 2024, at the age of 88.