Lee Soo-sung (born March 10, 1939) is a South Korean politician and legal scholar.

He was born in Kankō, Kankyōnan-dō, studied and graduated with a law degree going on to become a judge and following tenure as a lawyer went on become Associate Justice.

[3] His teaching experiences include various positions such as full-time lecturer, assistant professor, associate professor during 1967~1978, exchange researcher at University of Pittsburgh in the USA for 1970~1971 and the Dean of School of Law at the Seoul National University during 1988~1990.

He was also appointed as the board chairman of the Samsung Press Foundation and as the Prime Minister of Korea by Kim Young-sam Administration in December of the same year.

In 2000, he founded Democratic National Party along with Kim, Yoon Hwan and Lee, Gi Taek, and ran for the 16th general election without success.