Breton is a Southwestern Brittonic Celtic language spoken in Brittany. Breton is most closely related to Cornish, both being Southwestern Brittonic languages. The Bretons are an ethnic group located in the region of Brittany in France. If you are looking for some baby names for your boys or girls of Breton heritage, why not check out our collection of Breton baby names. These traditional Breton names are cool and different, they make good names for your little babies.