| Cadalso de los Vidrios | |
| Settlement Type: | Municipality |
| Pushpin Map: | Spain#Spain Community of Madrid |
| Pushpin Label Position: | above |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Spain |
| Coordinates: | 40.3014°N -4.4417°W |
| Subdivision Type: | Country |
| Subdivision Name: | Spain |
| Subdivision Type1: | Region |
| Subdivision Name1: | Community of Madrid |
| Leader Title: | Mayor |
| Leader Name: | Verónica Muñoz Villalva |
| Area Total Km2: | 47.64 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Elevation M: | 804 |
| Postal Code: | 28640 |
Cadalso de los Vidrios (pronounced as /es/) is a municipality the Community of Madrid, Spain. Located in the southwest of the region, it lies on the spurs of the Sistema Central. It is noted by its granite quarries.[1] The municipality covers an area of 47.64 km2.[2], it has a population of 3,049.