| Official Name: | Calzada de Don Diego |
| Settlement Type: | Municipality |
| Flag Size: | 150 |
| Pushpin Map: | Spain |
| Pushpin Map Caption: | Location in Spain |
| Coordinates: | 40.9061°N -5.9022°W |
| Subdivision Type: | Country |
| Subdivision Name: | Spain |
| Subdivision Type1: | Autonomous community |
| Subdivision Name1: | Castile and León |
| Subdivision Type2: | Province |
| Subdivision Name2: | Salamanca |
| Subdivision Type3: | Comarca |
| Subdivision Name3: | Campo de Salamanca |
| Leader Party: | People's Party |
| Leader Title: | Mayor |
| Leader Name: | María Isabel Sánchez Bernal |
| Area Total Km2: | 44 |
| Elevation M: | 815 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 37448 |
| Area Footnotes: | [1] |
Calzada de Don Diego is a village and municipality in the province of Salamanca, western Spain, part of the autonomous community of Castile and León. It is from the provincial capital city of Salamanca and had a population of 174 people . The municipality covers an area of and lies above sea level. The postal code is 37448.