| Gerenzano | |
| Official Name: | Comune di Gerenzano |
| Coordinates: | 45.6333°N 9°W |
| Region: | Lombardy |
| Province: | Varese (VA) |
| Mayor: | Stefania Castagnoli |
| Area Total Km2: | 9.8 |
| Population Footnotes: | [1] |
| Population Total: | 10098 |
| Population As Of: | 31 January 2009 |
| Population Demonym: | Gerenzanesi |
| Elevation M: | 226 |
| Saint: | Sts. Peter and Paul |
| Day: | April 7 |
| Postal Code: | 21040 |
| Area Code: | 02 |
Gerenzano is a comune (municipality) in the Province of Varese in the Italian region Lombardy, located about 25km (16miles) northwest of Milan and about 25km (16miles) southeast of Varese.
Gerenzano borders the following municipalities: Cislago, Rescaldina, Rovello Porro, Saronno, Turate, Uboldo.
Gerenzano is served by train transportation with Gerenzano-Turate station, situated on the line connecting Varese and Laveno Mombello to Milan. This line is operated by FNM.
Gerenzano has two public primary schools (one entitled to Pope Giovanni XXIII and one to G.P. Clerici) and one public middle school (entitled to the Italian scientist Enrico Fermi). There are no high schools in the comune.
A public library is also present in the territory, along with a public auditorium.
In Gerenzano are located the following sport teams: