| Stefano Lorenzi | |
| Birth Date: | 18 January 1977 |
| Birth Place: | Calcinate, Italy |
| Height: | 1.92 m |
| Position: | Defender |
| Currentclub: | Atalanta (U18 manager) |
| Youthclubs1: | Atalanta |
| Years1: | 1994–2005 |
| Years2: | 1996–1998 |
| Years3: | 2001–2003 |
| Years4: | 2004–2005 |
| Years5: | 2005–2008 |
| Years6: | 2006 |
| Years7: | 2007–2008 |
| Years8: | 2008–2010 |
| Clubs2: | → Carpi (loan) |
| Clubs3: | → Chievo (loan) |
| Clubs4: | → Arezzo (loan) |
| Clubs6: | → Pescara (loan) |
| Clubs7: | → Pisa (loan) |
| Clubs8: | SPAL |
| Caps1: | 73 |
| Caps2: | 49 |
| Caps3: | 23 |
| Caps4: | 1 |
| Caps5: | 14 |
| Caps6: | 8 |
| Caps7: | 21 |
| Caps8: | 46 |
| Goals1: | 2 |
| Goals2: | 1 |
| Goals3: | 0 |
| Goals4: | 0 |
| Goals5: | 0 |
| Goals6: | 0 |
| Goals7: | 1 |
| Goals8: | 1 |
| Manageryears1: | 2012–2017 |
| Managerclubs1: | Atalanta (youth) |
| Manageryears2: | 2017–2019 |
| Managerclubs2: | Atalanta (U17) |
| Manageryears3: | 2019–2021 |
| Managerclubs3: | Atalanta (U18) |
| Manageryears4: | 2021–2022 |
| Managerclubs4: | Atalanta (youth) |
| Manageryears5: | 2022– |
| Managerclubs5: | Atalanta (U18) |
Stefano Lorenzi (born 18 January 1977) is an Italian professional football coach and a former player. He is the manager of the Under-18 squad of Atalanta.
He played 5 seasons (42 games, 1 goal) in the Serie A for Atalanta B.C., A.C. ChievoVerona and Treviso F.C. 1993.
Lorenzi joined Treviso in co-ownership deal for €100,000.[1] In June 2006 Atalanta gave up the remain 50% registration rights. Lorenzi's contract expired on 30 June 2008.