Mayotte, officially the Department of Mayotte, is an overseas department and region and single territorial collectivity of France. It is located in the northern part of the Mozambique Channel in the Indian Ocean off the coast of Southeastern Africa, between Northwestern Madagascar and Northeastern Mozambique. Mayotte consists of a main island, Grande-Terre, a smaller island, Petite-Terre, as well as several islets around these two. Mayotte is the most prosperous territory in the Mozambique Channel, making it a major destination for immigration.

Overseas France consists of 13 French-administered territories outside Europe, mostly the remains of the French colonial empire that remained a part of the French state under various statuses after decolonization. Some, but not all, are part of the European Union.