| Lee Jung-hyun | |
| Office: | Chairman of the Saenuri Party |
| Term Start: | 9 August 2016 |
| Term End: | 16 December 2016 |
| Predecessor: | Kim Hee-ok |
| Office1: | Member of the National Assembly |
| Term Start1: | 31 July 2014 |
| Term End1: | 29 May 2020 |
| Predecessor1: | Kim Sun-dong |
| Successor1: | So Byung-chul (Suncheon-Gwangyang-Gokseong-Gurye 1st) Seo Dong-yong (Suncheon-Gwangyang-Gokseong-Gurye 2nd) |
| Term Start2: | 30 May 2008 |
| Term End2: | 29 May 2012 |
| Constituency2: | Proportional representation |
| Birth Date: | 1 September 1958 |
| Birth Place: | Gokseong, South Jeolla Province, South Korea |
| Party: | Independent |
| Hangul: | 이정현 |
| Hanja: | 李貞鉉 |
| Rr: | I Jeonghyeon |
| Mr: | Ri Chŏnghyŏn |
| Predecessor1: | Position established |
| Office2: | Member of the National Assembly |
| Term Start2: | 30 May 2008 |
Lee Jung-hyun (born 1 September 1958) is a South Korean politician. He was a member of the National Assembly and the delegate of Saenuri Party. He is also known as the first Jeolla Province born delegate of the conservative Saenuri Party since democratization in the 1980s, and widely regarded to have broken the regional discrimination in his Gyeongsang Province-oriented party as the party's first chairman from Jeolla regions. He is also regarded as one of President Park's closet aides, and this has stirred substantial unease recently during President Park's scandals in late 2016.[1]