| Biandronno | |
| Official Name: | Comune di Biandronno |
| Coordinates: | 45.8167°N 51°W |
| Region: | Lombardy |
| Province: | Varese (VA) |
| Frazioni: | Cassinetta |
| Area Total Km2: | 8 |
| Population Total: | 3102 |
| Population Demonym: | Biandronnesi |
| Elevation M: | 252 |
| Saint: | San Lorenzo |
| Day: | 10 August |
| Postal Code: | 21024 |
| Area Code: | 0332 |
Biandronno is a town and comune (municipality) located in the province of Varese, in the Lombardy region of northern Italy.