| Marek Gancarczyk | |
| Fullname: | Marek Gancarczyk |
| Birth Date: | 19 February 1983 |
| Birth Place: | Grodków, Poland |
| Years1: | 2002–2004 |
| Clubs1: | MKS Oława |
| Years2: | 2004–2007 |
| Caps2: | 79 |
| Goals2: | 13 |
| Years3: | 2007–2012 |
| Caps3: | 77 |
| Goals3: | 8 |
| Years4: | 2012 |
| Clubs4: | → ŁKS Łódź (loan) |
| Caps4: | 6 |
| Goals4: | 1 |
| Years5: | 2012 |
| Clubs5: | MKS Oława |
| Caps5: | 2 |
| Goals5: | 0 |
| Years6: | 2013 |
| Caps6: | 10 |
| Goals6: | 1 |
| Years7: | 2013–2015 |
| Caps7: | 43 |
| Goals7: | 12 |
| Years8: | 2015–2016 |
| Caps8: | 22 |
| Goals8: | 0 |
| Years9: | 2016–2018 |
| Caps9: | 53 |
| Goals9: | 8 |
| Years10: | 2018 |
| Caps10: | 12 |
| Goals10: | 4 |
| Years11: | 2023–2024 |
| Caps11: | 2 |
| Goals11: | 1 |
Marek Gancarczyk (born 19 February 1983) is a Polish former professional footballer who played as a midfielder.
He was a player for MKS Oława and Górnik Polkowice.
His brother is Janusz Gancarczyk who plays for Moto Jelcz Oława.
Śląsk Wrocław