The Conservatoire du littoral ("Coastal protection agency") (official name: Conservatoire de l'espace littoral et des rivages lacustres) is a French public organisation created in 1975 to ensure the protection of outstanding natural areas on the coast, banks of lakes and stretches of water of 10 square kilometres or more.
As at 31 January 2005, the Conservatoire cared for an area of 732 km2 spread over 300 sites, for 861 km of shoreline and 700 sites in 2015 for 1500 km, or 13 percent of French seacoast (the objective is to reach one third in 2050).
Its annual budget is approximately €30 million, €25 M of which is earmarked for acquisitions and development.
Most of its budget is provided by the national government, but local authorities and the European Union also contribute, as do corporations and private donors.
The Conservatoire national du littoral employs 100 people in Rochefort, in Paris, and in its regional offices.