The Buenos Aires Botanical Garden (whose official name in Spanish is Jardín Botánico Carlos Thays de la Ciudad Autónoma de Buenos Aires) is located in the Palermo neighbourhood of Buenos Aires in Argentina. The garden is triangular in shape, and is bounded by Sante Fé Avenue, Las Heras Avenue and República Árabe Siria Street. Palermo Park, the Buenos Aires Zoo and the Japanese Garden are all nearby.

The garden, which was declared a national monument in 1996, has a total area of 69,772 m2, and holds around 5,500 species of plants, trees and shrubs, as well as a number of sculptures, monuments and 5 winter-houses.