| Jeong Woo-In | |
| Fullname: | Jeong Woo-In |
| Birth Date: | 1 February 1988 |
| Birth Place: | Yangsan, Gyeongnam,[1] South Korea |
| Currentclub: | FC Pocheon |
| Position: | Defender |
| Youthyears1: | 2006–2009 |
| Youthclubs1: | Kyung Hee University |
| Years1: | 2010 |
| Caps1: | 22 |
| Goals1: | 5 |
| Years2: | 2011–2013 |
| Caps2: | 74 |
| Goals2: | 2 |
| Years3: | 2014–2015 |
| Caps3: | 38 |
| Goals3: | 2 |
| Years4: | 2016 |
| Caps4: | 21 |
| Goals4: | 0 |
| Years5: | 2017– |
| Pcupdate: | 1 December 2016 |
| Hangul: | 정우인 |
| Hanja: | 鄭愚仁 |
| Rr: | Jeong U-in |
| Mr: | Chŏng Uin |
Jeong Woo-In (; born 1 February 1988) is a South Korean footballer who plays as defender for FC Pocheon in the K3 League.
Jeong began his senior career with National League side Yongin City FC in 2010, where he appeared in 22 games and scored 5 goals.
Jeong was selected in the 2nd round of the 2011 K-League Draft by Gwangju FC.[2]