Marianao is one of the 15 municipalities or boroughs (municipios in Spanish) in the city of Havana, Cuba.

It lies 6 miles southwest of the original city of Havana, with which it is connected by the Marianao railway.

[2] Marianao is on a range of hills of about 1500 above sea level and is noted for its salubrious climate.

A famous landmark is the monument built to honor Carlos Juan Finlay, a doctor who helped eradicate yellow fever in Cuba in the 19th century.

One of the most notable foods made in Marianao is "Pollo A La Barbacoa".