| Cassina Valsassina | |
| Official Name: | Comune di Cassina Valsassina |
| Coordinates: | 45.9333°N 37°W |
| Region: | Lombardy |
| Province: | Lecco (LC) |
| Mayor: | Paolo Bianchi (since June 14, 2004) |
| Area Total Km2: | 2 |
| Population Footnotes: | [1] |
| Population Total: | 483 |
| Population As Of: | 2011 |
| Postal Code: | 22040 |
| Area Code: | 0341 |
Cassina Valsassina (Valassinese Casìna) is a town and comune in the province of Lecco, in Lombardy.