| Casorezzo | |
| Official Name: | Comune di Casorezzo |
| Coordinates: | 45.5167°N 62°W |
| Metropolitan City: | Milan (MI) |
| Area Total Km2: | 6 |
| Population Footnotes: | [1] |
| Population Total: | 4628 |
| Population Demonym: | Casorezzesi |
| Postal Code: | 20003 (prev. 20010) |
| Area Code: | 02 |
| Istat: | 015058 |
| Frazioni: | Arluno, Busto Garolfo, Inveruno, Ossona, Parabiago |
Casorezzo (Casorezz pronounced as /kazuˈrɛs/, locally Casoesso pronounced as /kazuˈesu/) is a town and comune in the Metropolitan City of Milan, Lombardy, northern Italy, about 25km (16miles) from Milan, Italy.