| Official Name: | La Fuente de San Esteban |
| Settlement Type: | Municipality |
| Flag Size: | 150 |
| Coordinates: | 40.8003°N -6.25°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: | Comarca de Ciudad Rodrigo |
| Subdivision Type4: | Subcomarca |
| Subdivision Name4: | Campo del Yeltes |
| Leader Party: | People's Party |
| Leader Title: | Mayor |
| Leader Name: | Manuel Rufino García Núñez |
| Area Footnotes: | [1] |
| Area Total Km2: | 77 |
| Elevation M: | 770 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 37200 |
La Fuente de San Esteban is a village and large municipality in the province of Salamanca, western Spain, part of the autonomous community of Castile-Leon. It is located from the provincial capital city of Salamanca and has a population of 1,358 people.
The town formerly had a direct rail connection to Porto in Portugal via the Douro railway line. The section between La Fuente de San Esteban and the border with Portugal was closed in 1984.
The municipality covers an area of 77km2. It lies above sea level and the postal code is 37200. The municipality contains the smaller villages of Boadilla (197 people), Muñoz (99 inhabitants) and Santa Olalla de Yeltes.