The Fontainebleau State Park is a state park and recreation area in Mandeville, Louisiana. It features 2800 acres of natural beauty and is originally known as the Tchefuncte State Park and Conservation Reservation.

The Fontainebleau State Park traces its roots back to 1829, when it was first established as a sugar plantation by Bernard de Marigny. Marigny was a French-Creole American nobleman and President of the Louisiana Senate from 1822 to 1823. He also operated a sugar mill and named his property after the beautiful forest known as Fontainebleau near Paris, France.

Located on the north shore of the Lake Ponchartrain and by the Bayou Cane and Bayous Castine, the Fontainebleau State Park is perfect for camping, hiking, horseback riding, fishing, picnicking, and biking among other things.