| Lee Won-jae | |
| Birth Date: | 1986 2, df=y |
| Birth Place: | South Korea |
| Height: | [1] |
| Position: | Centre-back |
| Youthyears1: | 2002–2004 |
| Youthclubs1: | Pohang Jecheol Technical High School |
| Years1: | 2005–2007 |
| Clubs1: | Pohang Steelers |
| Caps1: | 6 |
| Goals1: | 0 |
| Years2: | 2008 |
| Clubs2: | Jeonbuk Hyundai Motors |
| Caps2: | 4 |
| Goals2: | 0 |
| Years3: | 2009–2010 |
| Clubs3: | Ulsan Hyundai |
| Caps3: | 17 |
| Goals3: | 2 |
| Years4: | 2010–2014 |
| Clubs4: | Pohang Steelers |
| Caps4: | 8 |
| Goals4: | 0 |
| Years5: | 2013–2014 |
| Clubs5: | → Ansan Police (army) |
| Caps5: | 39 |
| Goals5: | 1 |
| Years6: | 2015 |
| Clubs6: | Daegu FC |
| Caps6: | 25 |
| Goals6: | 1 |
| Years7: | 2016 |
| Clubs7: | Gyeongnam FC |
| Caps7: | 13 |
| Goals7: | 1 |
| Years8: | 2017–2018 |
| Clubs8: | Manama Club |
| Years9: | 2018–2019 |
| Clubs9: | Nakhon Ratchasima |
| Caps9: | 58 |
| Goals9: | 2 |
| Years10: | 2020–2021 |
| Clubs10: | Bhayangkara |
| Caps10: | 3 |
| Goals10: | 0 |
| Pcupdate: | 13 January 2020 |
| Hangul: | 이원재 |
| Hanja: | 李源在 |
| Rr: | I Wonjae |
| Mr: | Ri Wŏnjae |
Lee Won-jae (; born 24 February 1986) is a South Korean football player who plays as a centre-back.