This is a list of place names in which the origin is Brythonic.
Breizh(Island & Region)Breton Breton form of Britain and Brittany. Great Britain is called Breizh-Veur in Breton.
Bretagna(Region & Island)Italian Italian form of Britain and Brittany. Great Britain is called Gran Bretagna in Italian.
Bretagne(Region & Island)French, German, Dutch French form of Britannia (see Britain). In French this typically refers to the region known as Brittany, while Great Britain is called Grande-Bretagne.
Bretaña(Region & Island)Spanish Spanish form of Britain and Brittany. Great Britain is called Gran Bretaña in Spanish.
Britain(Island)English From Britannia, the Latin name for the island of Great Britain, the land of the Britons. It derives from the name of the Britons, recorded in Greek in the 4th century BC as Πρεττανική (Prettanike), and reconstructed as Proto-Brythonic *Pritanī, possibly meaning "tattooed people".
Brittany(Region)English From Britannia (see Britain). This is the name of a region in northwestern France, so called because many Britons settled there after the fall of the Western Roman Empire. It had earlier been called Armorica. In the Middle Ages it was sometimes called Britannia Minor to distinguish it from the island of Great Britain. In French, both the island and the region are called Bretagne.
Dyfrdwy(River)Welsh Compound of Old Welsh dwfr "water" and duiu "god". This is the Welsh name of the River Dee.
Moridunum(Settlement)Brythonic (Latinized) From Brythonic *mori "sea" and *dūnom "rampart, hill fort". This was the name of a Roman-era fort in southern Wales. It is now known as Caerfyrddin.
Trefor(Settlement)Welsh Means "big village" from Middle Welsh tref "village" and maur "large". This is the name of a few towns in Wales.