| Duno | |
| Official Name: | Comune di Duno |
| Coordinates: | 45.9167°N 52°W |
| Region: | Lombardy |
| Province: | Varese (VA) |
| Mayor: | Francesco Paglia |
| Area Total Km2: | 2.59 |
| Population Footnotes: | [1] |
| Population Total: | 131 |
| Population As Of: | 31 July 2017 |
| Population Demonym: | Dunesi |
| Elevation M: | 530 |
| Postal Code: | 21030 |
| Area Code: | 0332 |
Duno is a comune (municipality) in the Province of Varese in the Italian region Lombardy, located about 60km (40miles) northwest of Milan and about 14km (09miles) northwest of Varese. Duno borders the following municipalities: Brissago-Valtravaglia, Casalzuigno, Cassano Valcuvia, Cuveglio, Mesenzana, Porto Valtravaglia.