| Ki Hyun-Seo | |
| Fullname: | Ki Hyun-Seo |
| Birth Date: | 6 May 1984 |
| Birth Place: | South Korea |
| Position: | Midfielder |
| Years1: | 2006–2008 |
| Years2: | 2009–2012 |
| Clubs2: | Ulsan Hyundai Mipo Dockyard |
| Caps1: | 4 |
| Caps2: | 69 |
| Goals1: | 0 |
| Goals2: | 2 |
Ki Hyun-Seo (; born May 6, 1984) is a South Korean football player.
Ki previously played for Gyeongnam FC in the K-League.[1]