Overseas France (la France d'outre-mer) is the collective name for the part of France outside Europe: French overseas regions (départements et régions d'outre-mer or DROM), territories (territoires d'outre-mer or TOM), collectivities (collectivités d'outre-mer or COM), and the sui generis collectivity (collectivité sui generis) of New Caledonia.
Metropolitan France and Overseas France together form the French Republic. Metropolitan France accounts for 82.2% of the land territory, 3.3% of the exclusive economic zone (EEZ), and 95.9% of the population of the French Republic.
The five overseas regions (departments)—Martinique, Guadeloupe, Réunion, French Guiana, and Mayotte—have the same political status as metropolitan France's regions. Metropolitan France and these five overseas regions together are sometimes called la France entière ("the whole of France") by the French administration, although in reality this France entière does not include the French overseas collectivities and territories that have more autonomy than the overseas departments.
In overseas France, a person from metropolitan France is often called a métro, short for métropolitain.
The term "metropolitan France" dates from the country's colonial period (from the 16th through the 20th centuries), when France was referred to as la Métropole (literally "the Metropolis") as distinguished from its colonies and protectorates, known as les colonies or l'Empire. Similar terms existed to describe other European colonial powers (e.g. "metropolitan Britain", "España metropolitana"). This usage of the words "metropolis" and "metropolitan" itself came from Ancient Greek "metropolis" (from μήτηρ mētēr "mother" and πόλις pólis "city, town"), which was the name for a city-state from which originated colonies across the Mediterranean (e.g. Marseille was a colony of the city-state of Phocaea, therefore Phocaea was the "metropolis" of Marseille). By extension "metropolis" and "metropolitan" came to mean "motherland", a nation or country as opposed to its colonies overseas.