Manuel Antonio National Park is a small national park in the Central Pacific Conservation Area located on the Pacific coast of Costa Rica, just south of the city of Quepos, Puntarenas, and 157 km (98 mi) from the national capital of San José. It was established in 1972, when the local community sought conservation to prohibit development and destruction of the natural environment. They also protested the beach restrictions on locals by foreign owners. The park has a land area of 1,983 ha and 25,634 ha of water area for a total of 27,587 ha. Despite being one of the smaller Costa Rican parks in land area, Manuel Antonio is the most popular of the 30 national parks in Costa Rica, visited by 4,388,460 people from 2012 to 2022.

A national park is a natural park in use for conservation purposes, created and protected by national governments. Often it is a reserve of natural, semi-natural, or developed land that a government declares or owns. Although individual countries designate their own national parks differently, there is a common idea: the conservation of 'wild nature' for posterity and as a symbol of national pride. National parks are almost always open to visitors.