| Yoon Si-Ho | |
| Fullname: | Yoon Si-Ho |
| Birth Date: | 12 May 1984 |
| Birth Place: | South Korea |
| Currentclub: | Trat |
| Clubnumber: | 23 |
| Position: | Full back |
| Years1: | 2003–2010 |
| Clubs1: | FC Seoul |
| Caps1: | 18 |
| Goals1: | 0 |
| Years2: | 2005–2006 |
| Clubs2: | → Police (Military service) |
| Years3: | 2011 |
| Clubs3: | Daegu FC |
| Caps3: | 25 |
| Goals3: | 0 |
| Years4: | 2012 |
| Clubs4: | FC Seoul |
| Caps4: | 3 |
| Goals4: | 0 |
| Years5: | 2013 |
| Clubs5: | Jeonnam Dragons |
| Caps5: | 0 |
| Goals5: | 0 |
| Years6: | 2013–2014 |
| Caps6: | 0 |
| Goals6: | 0 |
| Years7: | 2014 |
| Clubs7: | Pattaya United |
| Years8: | 2015 |
| Clubs8: | Trat |
| Pcupdate: | 6 July 2013 |
| Hangul: | 윤시호 |
| Hanja: | 尹施淏 |
| Rr: | Yun Si-ho |
| Mr: | Yun Siho |
Yoon Si-Ho (; born 12 May 1984) is a South Korean footballer who plays as full back for Gyeongju Korea Hydro & Nuclear Power FC. He was named Yoon Hong-Chang but was later renamed Yoon Si-Ho.[1]
On 25 February 2011, Yoon moved to Daegu FC.[2] Yoon made his Daegu FC debut on 5 March against Gwangju FC at Gwangju World Cup Stadium in a 2–3 loss.[3] After a one-year stint with Daegu, he returned to FC Seoul.