| Castrotierra de Valmadrigal | |
| Native Name Lang: | ast |
| Pushpin Map: | Spain |
| Coordinates: | 42.3442°N -5.2519°W |
| Subdivision Name3: | Castrotierra de Valmadrigal |
| Leader Title: | Mayor |
| Leader Name: | Agustín Paniagua Bajo |
| Leader Party: | PP |
| Area Total Km2: | 23.50 |
| Elevation M: | 850 |
| Population Density Km2: | auto |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal Code |
| Postal Code: | 24323 |
| Area Code Type: | Telephone prefix |
| Area Code: | 987 |
Castrotierra de Valmadrigal (pronounced as /es/), is a municipality located in the province of León, Castile and León, Spain. According to the 2010 census (INE), the municipality has a population of 124 inhabitants.