Cosme Velho is a neighborhood in the South Zone of Rio de Janeiro, adjacent to Laranjeiras.

Trains carry passengers from there to the summit of Corcovado Mountain and the statue of Christ the Redeemer.

The neighbourhood also includes the picturesque Largo do Boticário, which consists of a small square enclosed by several neocolonial-style houses, built in the 1920s.

The houses were constructed using materials from much older buildings in the city's Centro district which had been demolished.

The writer Joaquim Maria Machado de Assis lived in a house at 18 Rua Cosme Velho from 1883 until his death in 1908.