| Colmenar del Arroyo | |
| Settlement Type: | Municipality |
| Pushpin Map: | Spain |
| Pushpin Map Caption: | Location in Spain. |
| Subdivision Type: | Country |
| Subdivision Name: |  Spain |
| Subdivision Type1: | Autonomous community |
| Subdivision Name1: | Community of Madrid |
| Subdivision Type2: | Province |
| Subdivision Name2: | Madrid |
| Subdivision Type3: | Comarca |
| Subdivision Name3: | Sierra Oeste de Madrid |
| Leader Title: | Mayor |
| Leader Name: | Ana Belén Barbero Martín |
| Area Total Km2: | 50.57 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Coordinates: | 40.4206°N -4.1983°W |
| Elevation M: | 690 |
Colmenar del Arroyo is a municipality of the autonomous community of Madrid in central Spain. It belongs to the comarca of Las Vegas.