* French: This is the official language of France, and therefore of Bretagne. It is spoken by the vast majority of the population.
* Breton: This is a Celtic language that is native to the region. It is a minority language, with around 200,000 speakers. Breton is facing decline, but there are efforts to revitalize the language.
* Gallo: This is a Romance language that is spoken in the eastern part of Bretagne. It is also a minority language, with around 100,000 speakers. Gallo is considered to be a dialect of French by some linguists.
* Other languages: While less common, there are also small communities who speak other languages in Bretagne, such as English, Spanish, and Arabic.
So, while French is the dominant language, there is a strong cultural presence of Breton and Gallo in Bretagne, and they are both considered integral parts of the region's identity.