| Marcilly-en-Beauce | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Marcilly-en-Beauce (LoirCher).svg |
| Arrondissement: | Vendôme |
| Canton: | Montoire-sur-le-Loir |
| Insee: | 41124 |
| Postal Code: | 41100 |
| Mayor: | Marie-Christine Sauvé[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Territoires Vendômois |
| Coordinates: | 47.7644°N 1.0025°W |
| Elevation M: | 101 |
| Elevation Min M: | 80 |
| Elevation Max M: | 132 |
| Area Km2: | 6.39 |
Marcilly-en-Beauce (in French pronounced as /maʁsiji ɑ̃ bos/, literally Marcilly in Beauce) is a commune in the Loir-et-Cher department of central France.[2]