Monte Castro is a western barrio (neighborhood) in Buenos Aires, Argentina, belonging to the 10th comuna (district).

Its borders are: Alvarez Jonte Ave., Lope de Vega Ave., Juan Agustín García St., Joaquín V. González St., Baigorria St., and Irigoyen St.

However, at the end of 1930, many low-rent houses were built by the Compañía General de Construcciones, which have been rebuilt since.

The barrio's most important sports club is All Boys which was founded in 1913 in the nearby neighborhood of Floresta, later moving to Monte Castro in 1924.

This article about a location in the City of Buenos Aires, Argentina is a stub.