| Park Myeong-su | |
| Fullname: | Park Myeong-su |
| Birth Date: | 11 January 1998 |
| Birth Place: | South Korea |
| Height: | 1.74 m |
| Currentclub: | Daejeon Citizen |
| Clubnumber: | 34 |
| Position: | Defender |
| Youthyears1: | 2013–2015 |
| Youthclubs1: | Daegun High School |
| Youthyears2: | 2016 |
| Youthclubs2: | Soongsil University |
| Years1: | 2017 |
| Clubs1: | Incheon United |
| Caps1: | 0 |
| Goals1: | 0 |
| Years2: | 2017 |
| Clubs2: | → Gyeongnam FC (loan) |
| Caps2: | 11 |
| Goals2: | 0 |
| Years3: | 2018– |
| Clubs3: | Daejeon Citizen |
| Caps3: | 4 |
| Goals3: | 0 |
| Nationalyears1: | 2013–2015 |
| Nationalteam1: | South Korea U-17 |
| Nationalcaps1: | 26 |
| Nationalgoals1: | 1 |
| Nationalyears2: | 2016 |
| Nationalteam2: | South Korea U-20 |
| Nationalcaps2: | 1 |
| Nationalgoals2: | 0 |
| Pcupdate: | January 2, 2019 |
| Ntupdate: | January 2, 2017 |
| Hangul: | 박명수 |
| Rr: | Bak Myeongsu |
| Mr: | Pak Myŏngsu |
Park Myeong-su (born 11 January 1998) is a South Korean football defender who plays for Daejeon Citizen in K League 2.