| Official Name: | Saúca, Spain |
| Pushpin Map: | Spain Province of Guadalajara#Spain Castilla-La Mancha#Spain |
| Subdivision Type: | Country |
| Subdivision Name: |  Spain |
| Subdivision Type1: | Autonomous community |
| Subdivision Name1: | Castile-La Mancha |
| Subdivision Type2: | Province |
| Subdivision Name2: | Guadalajara |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Saúca |
| Area Total Km2: | 48 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
Saúca is a municipality located in the province of Guadalajara, Castile-La Mancha, Spain. According to the 2004 census (INE), the municipality has a population of 70 inhabitants.