| Casier | |
| Official Name: | Comune di Casier |
| Coordinates: | 45.65°N 30°W |
| Region: | Veneto |
| Province: | Treviso (TV) |
| Mayor: | Miriam Giuriati |
| Area Total Km2: | 13.46 |
| Population Total: | 11409 |
| Population As Of: | 31 December 2019 |
| Population Demonym: | Casieresi |
| Elevation M: | 5 |
| Day: | October 30 and June 26 |
| Postal Code: | 31030 |
| Area Code: | 0422 |
Casier is a town and comune in the province of Treviso, Veneto region, in north-eastern Italy. The commune has its seat in Dosson di Casier, and includes the localities of Frescada (partially), Le Grazie (partially), La Sicilia, Cà Matte.
The Festa dello sloboz rosso di Frescada is held every year, between January and February http://www.associazioneradicchio.it/.
