Île d'Orléans (French for "Isle of Orleans") was the historic French name for the New Orleans area, in current Louisiana, United States.
At the end of the French and Indian Wars in 1763, the French turned over nearly all their territory east of the Mississippi River to the British. The exception was New Orleans or more specifically the Île d'Orléans, also known as the Isle of Orleans. This island is bounded by the Mississippi River, the Gulf of Mexico, Lakes Pontchartrain and Maurepas as well as Bayou Manchac, previously known as Iberville River, and the Amite River. This region was turned over to the Spanish as was the entire territory west of the Mississippi River. The Isle of Orleans became part the United States as part of the Louisiana Purchase.
The Île d'Orléans formed the southern border of the Republic of West Florida.