| Kim Seong-soo | |
| Birth Date: | 26 December 1992 |
| Birth Place: | South Korea |
| Currentclub: | North Bangkok University |
| Clubnumber: | 7 |
| Position: | Midfielder |
| Youthyears1: | 2011–2012 |
| Youthclubs1: | Pai Chai University |
| Years1: | 2013–2015 |
| Caps1: | 19 |
| Goals1: | 0 |
| Years2: | 2016 |
| Caps2: | 8 |
| Goals2: | 0 |
| Years3: | 2017 |
| Caps3: | 0 |
| Goals3: | 0 |
| Years4: | 2018–2019 |
| Years5: | 2020 |
| Years6: | 2021 |
| Years7: | 2022 |
| Years8: | 2023 |
| Years9: | 2023– |
| Caps9: | 31 |
| Goals9: | 3 |
| Pcupdate: | 7 April 2024 |
| Hangul: | 김성수 |
| Rr: | Gim Seongsu |
| Mr: | Kim Sŏngsu |
Kim Seong-soo (; born 26 December 1992) is a South Korean footballer who plays as midfielder for Thai League 3 club North Bangkok University.
He was selected by Daejeon Citizen in the 2013 K League draft.[1] He made his debut in the league match against Suwon Samsung on 20 April 2013.