| Riese Pio X | |
| Official Name: | Comune di Riese Pio X |
| Native Name: | Rieze |
| Coordinates: | 45.7278°N 11.9167°W |
| Region: | Veneto |
| Province: | Treviso (TV) |
| Frazioni: | Poggiana, Spineda |
| Mayor: | Matteo Guidolin |
| Area Total Km2: | 30.64 |
| Population Footnotes: | [1] |
| Population Total: | 11067 |
| Population As Of: | 31 December 2015 |
| Population Demonym: | Riesini |
| Elevation M: | 65 |
| Day: | 21 September |
| Postal Code: | 31039 |
| Area Code: | 0423 |
Riese (Rieze), officially Riese Pio X, is a municipality in northeast Italy located in the province of Treviso in the Region of Veneto. The community's name, much like that of Sotto il Monte Giovanni XXIII, commemorates its most famous son, Giuseppe Melchiore Sarto, who later became Pope Pius X (Italian: Pio X).