MARIANAO, a city of the province of Havana, Cuba, 6 m. W. by S. of the city of Havana, with which it is connected by the Marianao railway. Pop. (1899), 5416; (1907), 9332. Marianao is on a range of hills about 1500 ft. above the sea, is noted for its salubrious climate, and is mainly a place of residence for the families of prosperous business men of Havana. On the neighbouring coast is Marianao Beach, a popular bathing resort. The city dates from about 1830.