| Serhiy Zadorozhnyi | |
| Fullname: | Serhiy Mykhaylovych Zadorozhnyi |
| Birth Date: | 1976 2, df=yes |
| Birth Place: | Novoazovsk, Ukrainian SSR |
| Height: | 1.86 m |
| Currentclub: | Nyva Ternopil (caretaker manager) |
| Position: | Defender |
| Youthyears1: | 1980s |
| Youthclubs1: | Dnipropetrovsk |
| Years1: | 1993 |
| Caps1: | 1 |
| Goals1: | 0 |
| Years2: | 1993–1996 |
| Clubs2: | Dnipro Dnipropetrovsk |
| Caps2: | 6 |
| Goals2: | 0 |
| Years3: | 1995–1996 |
| Caps3: | 45 |
| Goals3: | 8 |
| Years4: | 1996 |
| Caps4: | 1 |
| Goals4: | 0 |
| Years5: | 1996–1998 |
| Clubs5: | Kremin Kremenchuk |
| Caps5: | 81 |
| Goals5: | 5 |
| Years6: | 1999 |
| Clubs6: | Torpedo Zaporizhzhia |
| Caps6: | 14 |
| Goals6: | 0 |
| Years7: | 1999–2003 |
| Clubs7: | Dnipro Dnipropetrovsk |
| Caps7: | 88 |
| Goals7: | 8 |
| Years8: | 1999–2003 |
| Caps8: | 11 |
| Goals8: | 0 |
| Years9: | 2002 |
| Caps9: | 1 |
| Goals9: | 0 |
| Years10: | 2003–2005 |
| Clubs10: | Kryvbas Kryvyi Rih |
| Caps10: | 27 |
| Goals10: | 0 |
| Years11: | 2005–2006 |
| Clubs11: | Zorya Luhansk |
| Caps11: | 44 |
| Goals11: | 3 |
| Years12: | 2007 |
| Clubs12: | Zakarpattia Uzhhorod |
| Caps12: | 8 |
| Goals12: | 0 |
| Years13: | 2007–2008 |
| Clubs13: | Nyva Ternopil |
| Caps13: | 26 |
| Goals13: | 1 |
| Years14: | 2008 |
| Clubs14: | Oleksandriya |
| Caps14: | 11 |
| Goals14: | 0 |
| Totalcaps: | 364 |
| Totalgoals: | 25 |
| Nationalyears1: | 2001–2002 |
| Nationalcaps1: | 6 |
| Nationalgoals1: | 0 |
| Manageryears1: | 2009–2010 |
| Managerclubs1: | Stal Dniprodzerzhynsk |
| Manageryears2: | 2017–2018 |
| Managerclubs2: | Nyva Ternopil |
| Manageryears3: | 2018 |
| Managerclubs3: | Dnipro-1918 |
| Manageryears4: | 2019 |
| Managerclubs4: | Nyva Terebovlya |
| Manageryears5: | 2020 |
| Managerclubs5: | Peremoha Dnipro (sporting dnipro) |
| Manageryears6: | 2020 |
| Managerclubs6: | Nyva Terebovlya |
| Manageryears7: | 2020– |
| Managerclubs7: | Nyva Ternopil (sporting director) |
| Manageryears8: | 2022– |
| Managerclubs8: | Nyva Ternopil (caretaker) |
Serhiy Mykhaylovych Zadorozhnyi (uk|Сергій Михайлович Задорожний, born 20 February 1976) is a Ukrainian football manager and former player.