The eight member countries of the Central American Integration System (SICA)—Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama, and the Dominican Republic—are signatories to the Convention for the Protection of World Heritage and the Convention on Biological Diversity. Both binding international instruments use the terms ‘cultural landscape’ and ‘protected landscape’, respectively. For this reason, the environmental/natural and cultural legislation of the SICA region has been analyzed to identify the legal frameworks that allow for the declaration of the categories mentioned above for the protection of landscapes. In five of the eight SICA member states, 38 ‘protected landscapes’ were found to exist under environmental law. No designation has been reported for cultural legislation in this region. In addition, the designations and management plans for ‘protected landscapes’ were reviewed, and it was noted that most of them were similar in denomination, but their protection objectives were not aligned with the binding instruments from which they were derived. Thus, we conclude that, given the particular natural and cultural wealth of the SICA region, it is necessary to identify and map landscapes and establish common guidelines for managing them to foster harmony between nature and mankind and according to the international conventions’ objectives.