| Marek Chojnacki | |
| Fullname: | Marek Stanisław Chojnacki |
| Birth Date: | 6 December 1959 |
| Birth Place: | Łódź, Poland |
| Position: | Defender |
| Currentclub: | UKS SMS Łódź (women) (manager) |
| Years1: | 1978–1988 |
| Years2: | 1989 |
| Years3: | 1990–1996 |
| Years4: | 1996–1998 |
| Clubs3: | ŁKS Łódź |
| Clubs4: | Karkonosze Jelenia Góra |
| Caps1: | 273 |
| Caps2: | 27 |
| Caps3: | 179 |
| Goals1: | 41 |
| Goals2: | 3 |
| Goals3: | 7 |
| Nationalyears2: | 1981 |
| Nationalteam2: | Poland |
| Nationalcaps2: | 4 |
| Nationalgoals2: | 0 |
| Manageryears1: | 1996–1999 |
| Manageryears2: | 1999–2000 |
| Manageryears3: | 2000–2001 |
| Manageryears4: | 2001 |
| Manageryears5: | 2002–2003 |
| Manageryears6: | 2004 |
| Manageryears7: | 2006–2007 |
| Manageryears8: | 2007 |
| Manageryears9: | 2007 |
| Manageryears10: | 2007–2008 |
| Manageryears11: | 2009 |
| Manageryears12: | 2010 |
| Manageryears13: | 2010 |
| Manageryears14: | 2012 |
| Manageryears15: | 2012 |
| Manageryears16: | 2012–2013 |
| Manageryears17: | 2014–2015 |
| Manageryears18: | 2016– |
| Managerclubs1: | Karkonosze Jelenia Góra |
| Managerclubs5: | Stal Głowno |
| Managerclubs12: | Zawisza Rzgów |
| Managerclubs13: | Zagłębie Sosnowiec |
| Managerclubs14: | Zawisza Rzgów |
| Managerclubs16: | Zawisza Rzgów |
| Managerclubs18: | UKS SMS Łódź (women) |
Marek Stanisław Chojnacki (born 6 December 1959) is a Polish professional football manager and former player who played as a defender. He is currently in charge of Ekstraliga club UKS SMS Łódź.
Chojnacki played for ŁKS Łódź in the Polish Ekstraklasa, appearing in 452 league matches.[1] He had a spell in the Greek Super League with Ethnikos Piraeus F.C.[2]
Chojnacki played for Poland at the 1979 FIFA World Youth Championship in Japan. He played 4 international matches for his country.[3]
Poland U18
UKS SMS Łódź