There are a number of vernacular languages of France as well as recent imported foreign languages. French is the sole official language and is by far the most widely spoken, but several regional languages are also spoken to varying degrees. Owing to immigration, a number of non-indigenous tongues are now also spoken in parts of the country. The map to the right displays the historical areas in which regional languages have been spoken. Some of these languages have also been spoken in neighbouring countries.

The official language of the French Republic is French (art. 2 of the French Constitution) and the French government is, by law, compelled to communicate primarily in French. The government, furthermore, mandates that commercial advertising be available in French (though it can also use other languages); see Toubon Law. The French government, however, does not mandate the usage of French in non-commercial publications by private individuals or corporations or in any other media.

A revision of the French constitution creating official recognition of regional languages was implemented by the Parliament in Congress at Versailles in July 2008.

France (English ⁱ/ˈfræns/ FRANSS or /ˈfrɑːns/ FRAHNSS; French: [fʁɑ̃s] ( listen)), officially the French Republic (French: République française [ʁepyblik fʁɑ̃sɛz]), is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France extends from the Mediterranean Sea to the English Channel and the North Sea, and from the Rhine to the Atlantic Ocean. It is often referred to as l’Hexagone ("The Hexagon") because of the geometric shape of its territory. It is the largest western European country and it possesses the second-largest exclusive economic zone in the world, covering 11,035,000 km² (4,260,000 sq mi), just behind that of the United States (11,351,000 km² / 4,383,000 sq mi).

Over the past 500 years, France has been a major power with strong cultural, economic, military and political influence in Europe and around the world. During the 17th and 18th centuries, France colonised great parts of North America and Southeast Asia; during the 19th and early 20th centuries, France built the second largest colonial empire of the time, including large portions of North, West and Central Africa, Southeast Asia, and many Caribbean and Pacific Islands.