马里亚瑙是古巴首都哈瓦那省的一个区，面积22平方公里，2004年人口137,999，人口密度为每平方公里6,272人。

• Details of municipality (Spanish)
• Description of Marianao before the 1959 Revolution

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. In **** the municipality had a population of 133,016. Marianao is on a range of hills about 1500 ft. above sea level, is noted for its salubrious climate. The city dates from about 1830.