San Luis () is a province of Argentina located near the geographical center of the country (on the 32° South parallel). Neighboring provinces are, from the north clockwise, La Rioja, Córdoba, La Pampa, Mendoza and San Juan.
History
thumb|left|160px|Juan Saá, early advocate for provincial autonomy.
The city of San Luis was founded in 1594 by Luis Jufré de Loaysa y Meneses, but was subsequently abandoned. It was refounded by Martín García Óñez de Loyola in 1596 under the name San Luis de Loyola.
thumb|right|240px|San Luis [[Justicialist Party officials confer under the images of Juan and Evita Perón. The Rodríguez Saá brothers are seated in the middle.]]
Since Argentina's return to democratic rule in 1983, in particular, the Rodríguez Saá family (of Peronist affiliation) has occupied the governor's seat. Former governor (now Senator) Adolfo Rodríguez Saá has overseen investment by light manufacturers (mostly food processors and bottling plants) and advances like the construction of Argentina's most extensive expressway network. Since 2023, Claudio Poggi has been the governor of San Luis Province, a position he previously held from 2011 to 2015.
Economy
San Luis' economy has, over the past generation, been among the most improved in Argentina. Its 2006 output, estimated at US$3.386 billion, yielded a per capita income of US$9,203 (somewhat above the national average).
Demographics
Historical evolution of the population of the province: