Réserve Cousteau, Protected marine area in Basse-Terre, Guadeloupe, France.

Réserve Cousteau is a protected marine area of about 400 hectares around the Pigeon Islands, facing Malendure beach on the coast of Basse-Terre in Guadeloupe, mainly in the municipality of Bouillante and partly in Pointe-Noire. Its seabed holds many coral species, gorgonians, brain corals, sponges, tropical fish, spiny lobsters and sea turtles.

Official protection came in 2009 when the area became part of Guadeloupe National Park, a response to growing concern about declining coral reefs in the Caribbean. The designation marked a shift toward active ocean conservation in the region.

The name "Réserve Cousteau" was attached to the site by local traders, first as a friendly gesture and then for publicity, after Jacques-Yves Cousteau saw the Malendure seabed in 1959 and asked for it to be protected. The label caught on with tourists at once, and dive clubs settled around the site as recreational diving grew.

The reserve lies around the Pigeon Islands, facing Malendure beach in Bouillante, with part of the area in Pointe-Noire. Since 2009 it has been part of Guadeloupe National Park, and fishing and anchoring are banned within it. Several dive clubs operate around the site, and humpback whales can be heard in January and February.

The reserve's name is not tied to The Silent World, filmed in the Red Sea in 1954-1955. Cousteau adopted it only after 1959 tests of a new diving saucer off Malendure, when he asked for the site to be protected; local traders then used the name for publicity.