| Lee Jae-sung | |
| Fullname: | Lee Jae-sung |
| Birth Date: | 5 July 1988 |
| Birth Place: | South Korea |
| Position: | Central defender |
| Youthclubs1: | Korea University |
| Years1: | 2009–2010 |
| Years2: | 2010 |
| Years3: | 2011–2016 |
| Years4: | 2013–2014 |
| Years5: | 2017–2018 |
| Years6: | 2019–2020 |
| Years7: | 2020–2021 |
| Years8: | 2022–2024 |
| Years9: | 2024 |
| Clubs1: | Suwon Samsung Bluewings |
| Clubs2: | → Ulsan Hyundai (loan) |
| Clubs3: | Ulsan Hyundai |
| Clubs4: | → Sangju Sangmu (army) |
| Clubs5: | Jeonbuk Hyundai |
| Clubs6: | Incheon United |
| Clubs7: | Ratchaburi Mitr Phol |
| Clubs8: | Chungnam Asan FC |
| Clubs9: | Muangthong United |
| Caps1: | 11 |
| Goals1: | 1 |
| Caps2: | 13 |
| Goals2: | 0 |
| Caps3: | 99 |
| Goals3: | 7 |
| Caps4: | 36 |
| Goals4: | 2 |
| Caps5: | 26 |
| Goals5: | 3 |
| Caps6: | 29 |
| Goals6: | 1 |
| Caps7: | 9 |
| Goals7: | 0 |
| Caps8: | 20 |
| Goals8: | 0 |
| Caps9: | 9 |
| Goals9: | 1 |
| Nationalyears1: | 2011 |
| Nationalteam1: | South Korea |
| Nationalcaps1: | 1 |
| Nationalgoals1: | 0 |
| Pcupdate: | 13:03, 16 June 2024 (UTC) |
| Ntupdate: | 10 August 2011 |
Lee Jae-sung (; born 5 July 1988) is a South Korean football defender.
In January 2019, he moved to Incheon United.[1]