Tintagel () or Trevena (Cornish: Tre war Venydh, meaning Village on a Mountain) is a civil parish and village situated on the Atlantic coast of Cornwall, England, United Kingdom. The village and nearby Tintagel Castle are associated with the legends surrounding King Arthur and in recent times have become a tourist attraction. It was claimed by Geoffrey of Monmouth that the castle was an ancient residence of King Arthur.

Tintagel is used by the poet Alfred, Lord Tennyson in the poem Idylls of the King and Algernon Charles Swinburne's Tristram of Lyonesse, and Thomas Hardy's The Famous Tragedy of the Queen of Cornwall at Tintagel in Lyonnesse, is a play published in 1923, which perpetuates the same legend.

Tourists can visit King Arthur's Great Halls at Trevena which is a substantial building of the early 1930s. The Artognou stone, which was discovered in 1998, has added to the legend, although historians do not believe the inscription refers to King Arthur.

Toponymy

Toponymists have had difficulty explaining the origin of 'Tintagel': the probability is that it is Norman French, as the Cornish of the 13th century would have lacked the soft 'g' ('i/j' in the earliest forms: see also Tintagel Castle). If it is Cornish then 'Dun' would mean Fort. Oliver Padel proposes 'Dun' '-tagell' meaning narrow place in his book on place names. There is a possible cognate in the Channel Islands named Tente d'Agel, but that still leaves the question subject to doubt.