Castillo San Felipe de Barajas is a fortification located in the Colombian city of Cartagena de Indias. It is located on a hill called San Lazaro and was built in 1657 during the Spanish colonial era.

In 1984, Unesco included the Historic Center of the city of Cartagena de Indias, its fortifications and the San Felipe de Barajas castle within the list of world heritage sites. It is considered one of the seven wonders of Colombia and is one of the largest structures built in Colombian territory.