In the fiction of J.R.R. Tolkien, Tol Morwen is the westernmost island located off the coasts of Middle-earth after the drowning of Beleriand at the end of the First Age.

One of the few locations in Beleriand which was not drowned, it was the site of the Stone of the Hapless and the grave of Morwen Eledwhen, hence its name. Mariners of Numenor and later Arnor visited it on their voyages to pay respect to the hero Túrin Túrambar buried there.

“It is told that a seer and harp-player of Brethil named Glirhuin made a song, saying that the Stone of the Hapless should not be defiled by Morgoth nor ever thrown down, not though the sea should drown all the land; as after indeed befell, and still Tol Morwen stands alone in the water beyond the new coasts that were made in the days of the wrath of the Valar.”

(J.R.R. Tolkien, “Simarillion”, page 275)