| Lee Jin-sung | |
| Native Name Lang: | ko |
| Birth Date: | 5 August 1956 |
| Birth Place: | Busan, South Korea |
| Alma Mater: | Seoul National University (LL.B.) |
| Office1: | 6th President of the Constitutional Court of Korea |
| Term Start1: | 24 November 2017 |
| Term End1: | 19 September 2018 |
| Nominator1: | Moon Jae-in |
| Predecessor1: | Park Han-chul |
| Successor1: | Yoo Nam-seok |
| Office2: | Justice of the Constitutional Court of Korea |
| Term Start2: | September 2012 |
| Term End2: | November 2017 |
Lee Jin-sung (; born 5 August 1956) was the 6th President of the Constitutional Court of South Korea, appointed by Moon Jae-in on November 24, 2017.[1]
1983 Judge, Busan District Court
1988 Judge, Uijeongbu Branch of Seoul District Court
1990 Judge, Seoul High Court
1991 Judge, Seoul Criminal District Court
1993 Law Clerk, Supreme Court
1994 Chief Judge, Kangkyung Branch of Daejeon District Court
1997 Professor, Judicial Research and Training Institute
2000 Senior Judge, Seoul District Court
2001 Senior Judge, Patent Court
2003 Senior Judge, Seoul High Court
2005 Bankruptcy Senior Chief Judge, Seoul Central District Court
2008 Vice Minister, Ministry of Court Administration, Supreme Court
2010 Chief Judge, Seoul Central District Court
2012 Chief Judge, Gwangju High Court
2012 Justice, Constitutional Court
2017 President, Constitutional Court (retired on September 19, 2018)