Manaw Gododdin was the narrow coastal region on the south side of the Firth of Forth, part of the Brythonic-speaking Kingdom of Gododdin in the post-Roman Era. It is notable as the homeland of Cunedda prior to his conquest of North Wales, and as the homeland of the heroic warriors in the literary epic Y Gododdin. Pressed by the Picts expanding southward and the Northumbrians expanding northward, it was permanently destroyed in the 7th century and its territory absorbed into the then-ascendant Kingdom of Northumbria.

The Gododdin were a Brittonic people of north-eastern Britannia, the area known as the Hen Ogledd or Old North, in the sub-Roman period. Descendants of the Votadini, they are best known as the subject of the 6th-century Welsh poem Y Gododdin, which memorialises the Battle of Catraeth and is attributed to Aneirin.