| Saint Isidro District | |
| Native Name: | Distrito de San Isidro (Spanish) |
| Native Name Lang: | es |
| Settlement Type: | District |
| Mapsize: | frameless |
| Coordinates: | -12.0992°N -77.0347°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Peru |
| Subdivision Type1: | Region |
| Subdivision Name1: | Lima |
| Subdivision Type2: | Province |
| Subdivision Name2: | Lima |
| Established Title: | Created |
| Established Date: | April 24, 1931 |
| Seat Type: | Capital |
| Parts Type: | Subdivisions |
| Parts Style: | para |
| Leader Title: | Mayor |
| Leader Name: | Nancy Vizurraga (2023-2026) |
| Unit Pref: | Metric |
| Area Total Km2: | 11.1 |
| Elevation M: | 109 |
| Population Footnotes: | [1] |
| Population As Of: | 2023 |
| Population Density Km2: | auto |
| Timezone1: | PET |
| Utc Offset1: | -5 |
| Blank Name Sec1: | UBIGEO |
| Blank Info Sec1: | 140124 |
San Isidro is an upscale district of the Lima Province in Peru. It is located in the west center of the city, it has a few meters of coastline. Officially created on April 24, 1931,[2] San Isidro, along with Orrantia and Country Club neighbourhoods, was separated from Miraflores.
San Isidro has become a major financial quarter in recent years, as many banks and businesses left downtown Lima to set up their headquarters in modern office blocks. It is inhabited by mostly upper middle and upper-class families.
The district has a total land area of 9.78 km2. Its administrative center is located at 109 meters above sea level.
For more than fifty years, the border at the western area of the district has been disputed with neighboring Magdalena del Mar.[3] A judge ordered the councils of both districts to deposit the money of the affected areas' taxpayers in the National Bank of Peru until this long-standing conflict is resolved.[4]
According to a 2002 estimate by the INEI, the district has 68,438 inhabitants and a population density of 6,165.6 persons/km2. In 1999, there were 20,598 households in the district.
San Isidro prides itself on being home to many Peruvian artists. A few museums, as well as the Wak'a Wallamarka, a pre-Inca burying temple which dates back to the 4th century where concerts and exhibitions are held occasionally, showing the cultural heritage of the district.
Notable residents of San Isidro have include painter Fernando de Szyszlo, former presidents Pedro Pablo Kuczynski and Martín Vizcarra, and other politicians such as Javier Pérez de Cuéllar, José Antonio García Belaúnde, and Francisco Tudela, among others.