| Type: | Municipality |
| Official Name: | Reyero |
| Pushpin Map: | Spain#Spain Castile and León#Spain Province of León |
| Pushpin Label: | Reyero |
| Pushpin Map Caption: | Location |
| Subdivision Type: | Country |
| Subdivision Type1: | Autonomous community |
| Subdivision Type2: | Province |
| Subdivision Name2: | León |
| Subdivision Type3: | Comarca |
| Subdivision Name3: | Valle de Boñar |
| Leader Title: | Alcalde |
| Leader Name: | Gregorio Alonso González |
| Leader Party: | PSOE |
| Area Total Km2: | 26.2 |
| Elevation M: | 1150 |
| Population Density Km2: | auto |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
Reyero is a municipality located in the province of León, Castile and León, Spain. According to the 2004 census (INE), the municipality has a population of 146 inhabitants.