| San Cesario sul Panaro | |
| Official Name: | Comune di San Cesario sul Panaro |
| Coordinates: | 44.5614°N 11.0339°W |
| Region: | Emilia-Romagna |
| Province: | Modena (MO) |
| Frazioni: | Altolà, Ponte Sant'Ambrogio, Sant'Anna |
| Mayor: | Francesco Zuffi |
| Area Total Km2: | 27.4 |
| Population Footnotes: | [1] |
| Population Total: | 6412 |
| Population As Of: | 31 July 2015 |
| Population Demonym: | Sancesaresi |
| Elevation Min M: | 33 |
| Elevation Max M: | 77 |
| Saint: | San Cesario |
| Postal Code: | 41018 |
| Area Code: | 059 |
San Cesario sul Panaro (Modenese: San Gèr; Western Bolognese: San Cesèri) is a comune (municipality) in the Province of Modena in the Italian region Emilia-Romagna, located about northwest of Bologna and about southeast of Modena. Sports car manufacturer Pagani is located here. The town has a Romanesque-style church dedicated to Saint Caesarius of Terracina.
The battle of San Cesario took place in the area in August 1229.