San Francisco Solano, usually known as Solano, is a city in Buenos Aires Province, Argentina. It forms part of the Greater Buenos Aires agglomeration. It is divided between the Quilmes and Almirante Brown partidos.

• 17 February 1173, the Franciscan convent of Buenos Aires buys territory in the area but sells it in 1871
• 1948, the territory is subdivided into plots and sold by the provincial administration
• 1949, the settlement is officially founded with the name of San Francisco Solano, despite a council resolution to name the settlement after Paulino Barreiro, a Buenos Aires-born judge assassinated in 1840
• 12 October 1981, the settlement is officially declared a city

The city is named after Spanish missionary St. Francisco Solano (10 March 1549 – 14 July 1610).

There are 53,363 inhabitants who live in the Quilmes-administered part of the city and 28,344 inhabitants in Almirante Brown partido.

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