Cerro Azul ("Blue Hill") is a fishing village and formerly a commercial port in the Cañete Province, Lima Region, Peru.

Located 131 km south of Lima, it is frequently visited in the summer by its residents, and those of San Vicente de Cañete.

South of the pier is the area known as Puerto Viejo ("old port" ), where all the holiday homes are and where most of the surfing takes place (left breaks).

Cerro Azul's main feature is the pier which was built by a British company around 1900 for the export of locally grown cotton.

Elite residences included a brewery that contained large hearths and gigantic vessels to store the chicha (corn beer) that could be served during feasts.

The town was subdued by the Inca Pachacutec who ordered to build a stone fortress (Fortaleza de Cerro Azul), with steps down to the sea in honor of his victory and a symbol of his absolute power.