Guiana Amazonian Park (Parc amazonien de Guyane) covers more than 33,000 square kilometres in French Guiana, an overseas department of France on the north‑east coast of South America.

Because French Guiana is legally part of France and thus the European Union, the park is counted as the EU’s biggest protected area.

According to the French Guiana entry on Wikipedia , the Amazonian forest in the territory’s remote interior was protected as the Guiana Amazonian Park in 2007, making it one of France’s ten national parks and covering some 33,900 km² across the communes of Camopi, Maripasoula, Papaïchton, Saint‑Élie and Saül.

Guiana Amazonian Park’s sheer scale is distinct. Its core and buffer zones cover about 33,900 km² (13,090 sq mi), roughly 40% of French Guiana’s land area. The park was created by a government decree on 28 February 2007 after years of negotiations to reconcile conservation with indigenous rights.

This massive protected area is larger than many European countries and has made the combined network of Guiana Amazonian Park and Brazil’s neighbouring Tumucumaque National Park the world’s largest continuous rainforest reserve, spanning some 12 million hectares.

The park’s status as the EU’s largest national park underscores France’s unique geography: its overseas territories extend the bloc’s boundaries into the Caribbean, Indian Ocean and South America .

European Union environmental policy applies to French Guiana, meaning that conservation measures there contribute directly to EU biodiversity commitments. Protecting such a vast swath of Amazon rainforest also helps in the global fight against climate change by preserving carbon‑rich ecosystems.

Guiana Amazonian Park is a biodiversity treasure. A survey by the LAC Geo geographic resource notes that the park contains about 1,500 tree species, roughly one‑quarter of the 5,800 plant species recorded in French Guiana. Its rivers support 400 species of freshwater fish, 192 mammals, 261 reptiles and amphibians and 719 species of birds; about 40 % of the fish species are endemic to the region.

Another study cited by Wikipedia lists 90 amphibian species, 133 reptiles, 520 birds and 182 mammals, as well as more than 200 fish species. Iconic Amazonian wildlife like jaguars, giant otters, harpy eagles and anacondas roam the forest. The park’s remarkable biodiversity was one of the key arguments for its creation and remains a major focus of ongoing research.