| Jung Myung-oh | |
| Birth Date: | 29 October 1986 |
| Birth Place: | South Korea |
| Currentclub: | Ayutthaya United |
| Clubnumber: | 30 |
| Position: | Defensive midfielder / Centre-back |
| Youthyears1: | 2005–2008 |
| Youthclubs1: | Ajou University |
| Years1: | 2009–2010 |
| Clubs1: | Gyeongnam FC |
| Caps1: | 6 |
| Goals1: | 0 |
| Years2: | 2011 |
| Clubs2: | Suwon City |
| Caps2: | 21 |
| Goals2: | 1 |
| Years3: | 2012 |
| Clubs3: | Chunnam Dragons |
| Caps3: | 22 |
| Goals3: | 0 |
| Years4: | 2013 |
| Clubs4: | Army United |
| Caps4: | 28 |
| Goals4: | 4 |
| Years5: | 2014–2016 |
| Clubs5: | Suphanburi |
| Caps5: | 34 |
| Goals5: | 1 |
| Years6: | 2017–2021 |
| Clubs6: | Sukhothai |
| Caps6: | 66 |
| Goals6: | 5 |
| Years7: | 2021 |
| Clubs7: | Mokpo |
| Caps7: | 4 |
| Goals7: | 1 |
| Years8: | 2024– |
| Clubs8: | Ayutthaya United |
| Caps8: | 4 |
| Goals8: | 0 |
| Pcupdate: | 3 April 2019 |
| Hangul: | 정명오 |
| Rr: | Jeong Myeong-o |
| Mr: | Chŏng Myŏng-o |
Jung Myung-oh (; born 29 October 1986) is a South Korea professional footballer who plays as a defensive midfielder or centre-back for Thai League 2 club Ayutthaya United.