| Moon Sang-yun | |
| Birth Date: | 9 January 1991 |
| Birth Place: | Miryang, South Korea |
| Currentclub: | Chungbuk Cheongju |
| Clubnumber: | 8 |
| Position: | Central midfielder, winger |
| Youthclubs1: | Incheon Daegun High School |
| Youthclubs2: | Ajou University |
| Years1: | 2012–2014 |
| Caps1: | 86 |
| Goals1: | 7 |
| Years2: | 2015 |
| Caps2: | 9 |
| Goals2: | 2 |
| Years3: | 2016–2017 |
| Caps3: | 40 |
| Goals3: | 4 |
| Years4: | 2018–2019 |
| Caps4: | 48 |
| Goals4: | 5 |
| Years5: | 2020-2021 |
| Caps5: | 15 |
| Goals5: | 0 |
| Years6: | 2022–2023 |
| Caps6: | 0 |
| Goals6: | 0 |
| Years7: | 2024– |
| Clubs7: | Chungbuk Cheongju |
| Caps7: | 0 |
| Goals7: | 0 |
| Nationalyears1: | 2011 |
| Nationalteam1: | South Korea U-20 |
| Nationalcaps1: | 2 |
| Nationalgoals1: | 0 |
| Nationalyears2: | 2011–2014 |
| Nationalteam2: | South Korea U-23 |
| Nationalcaps2: | 10 |
| Nationalgoals2: | 0 |
| Club-Update: | 6 February 2022 |
| Ntupdate: | 11 March 2014 |
| Hangul: | 문상윤 |
| Hanja: | 文相潤 |
| Rr: | Mun Sangyun |
| Mr: | Mun Sangyun |
Moon Sang-yun (; born 9 January 1991) is a South Korean footballer who plays as a midfielder for Chungbuk Cheongju of K League 2.