| Personal information | |||
|---|---|---|---|
| Date of birth | 12 February 1981 | ||
| Place of birth | Brzeg, Poland | ||
| Height | 1.68 m (5 ft 6 in) | ||
| Position(s) | Midfielder | ||
| Team information | |||
Current team | LZS Domaszkowice (manager) | ||
| Youth career | |||
| BTP Brzeg | |||
| Senior career* | |||
| Years | Team | Apps | (Gls) |
| 2000–2004 | Odra Wodzisław | 41 | (7) |
| 2004–2007 | Dyskobolia Grodzisk | 36 | (0) |
| 2005 | → Obra Kościan (loan) | ||
| 2005–2006 | → Korona Kielce (loan) | 14 | (1) |
| 2007 | Odra Wodzisław | 28 | (4) |
| 2008–2009 | Ruch Chorzów | 38 | (2) |
| 2010–2011 | Wisła Płock | 43 | (10) |
| 2011–2014 | Miedź Legnica | 60 | (7) |
| 2013 | → ROW Rybnik (loan) | 9 | (0) |
| 2014–2016 | MKS Kluczbork | 58 | (7) |
| 2016–2019 | Stal Brzeg | 84 | (25) |
| 2019 | LZS Starowice Dolne | 17 | (2) |
| International career | |||
| 2003 | Poland U21 | 3 | (1) |
| 2004 | Poland | 1 | (0) |
| Managerial career | |||
| 2020–2021 | GKS Rychtal | ||
| 2021–2022 | Stal Brzeg | ||
| 2022–2023 | GKS Rychtal | ||
| 2023– | LZS Domaszkowice | ||
| *Club domestic league appearances and goals | |||
Marcin Nowacki (born 12 February 1981) is a Polish football manager and former player who is in charge of IV liga club LZS Domaszkowice.