| Yoon Won-il | |
| Birth Date: | 23 October 1986 |
| Currentclub: | Daejeon Citizen |
| Clubnumber: | 33 |
| Position: | Defender |
| Youthclubs1: | Masan Technical High School |
| Years1: | 2008–2013 |
| Clubs1: | Jeju United |
| Caps1: | 12 |
| Goals1: | 0 |
| Years2: | 2013 |
| Clubs2: | → Daejeon Citizen (loan) |
| Caps2: | 20 |
| Goals2: | 1 |
| Years3: | 2014– |
| Clubs3: | Daejeon Citizen |
| Caps3: | 30 |
| Goals3: | 0 |
| Nationalyears1: | 2008 |
| Nationalteam1: | South Korea U-23 |
| Nationalcaps1: | 1 |
| Nationalgoals1: | 0 |
| Pcupdate: | 15 December 2015 |
Yoon Won-il (Korean: 윤원일; born October 23, 1986) is a South Korean football player who currently plays for Daejeon Citizen in the K League Challenge.