El Morro Castle, locally known as Castillo del Morro but officially called Castillo de los Tres Reyes del Morro, is situated on a rocky promontory at the entrance of the bay of the city of Havana on Cuba. It is not to be confused with the‚ El Morro Castle in Santiago de Cuba.

El Morro was built in the late 16th century and early 17th century to guard against the constant threat of pirate attacks. It was designed by Italian engineer, Giovanni Battista Antonelli and looks much the same as it did in the 17th century. One of the main changes to the fort is the lighthouse. It was rebuilt several times and then finally replaced in the middle of the 19th century with a new lighthouse constructed of solid stone. Today, its original lamp still shines, and the fort is open to visitors who can enjoy beautiful views over the ocean and the city of Havana from its upper reaches.