| Oleh Ptachyk | |
| Fullname: | Oleh Ivanovych Ptachyk |
| Birth Date: | 1981 11, df=yes |
| Birth Place: | Kharkiv, Ukrainian SSR, Soviet Union |
| Position: | Defender |
| Youthyears1: | 1998–1999 |
| Youthclubs1: | Olimpik Kharkiv |
| Years1: | 2001–2003 |
| Caps1: | 31 |
| Goals1: | 0 |
| Years2: | 2004 |
| Caps2: | 28 |
| Goals2: | 1 |
| Years3: | 2005 |
| Caps3: | 11 |
| Goals3: | 0 |
| Years4: | 2005–2006 |
| Caps4: | 4 |
| Goals4: | 0 |
| Years5: | 2006–2007 |
| Caps5: | 27 |
| Goals5: | 0 |
| Years6: | 2007–2008 |
| Caps6: | 8 |
| Goals6: | 1 |
| Pcupdate: | 17 June 2010 |
Oleh Ivanovych Ptachyk (born 14 November 1981) is a retired Ukrainian football defender who last played for Naftovyk in the Ukrainian Premier League.