Here are entered works on the Celtic people living in Great Britain from the Iron Age through the Early Middle Ages. Works on citizens of the United Kingdom, the Isle of Man, the Channel Islands, or the British overseas territories not currently residing within those jurisdictions are entered under British.
Here are entered works on the movement which emphasizes the commonality among peoples having a Celtic origin or speaking a Celtic language with the immediate aim of improving cultural links, or the long-term aim of a formal association between self-governing Celtic nations.