In The Silmarillion by J. R. R. Tolkien, Túrin Turambar was a Man of Middle-earth, son of Húrin and Morwen "Elf-sheen", who became a tragic hero (or anti-hero) of the First Age in the tale called "Narn i Chîn Húrin" ("The Tale of the Children of Húrin"). Unpublished drafts of the story, later edited by Christopher Tolkien and published in Unfinished Tales and The History of Middle-earth series, tell the tale in more detail.

AKA: Dagnir Glaurunga; Mormegil (Black Sword); Umarth, son of Agarwaen (the Bloodstained son of the Cursed); Thurin (the secret); The Black Sword of Nargothrond.

It was phrophesied by Mandos that at the End of Time Morgoth will wage a final battle against the Valar, the Final Battle, and that Túrin Turambar will deliver the death blow to Morgoth, exterminating evil forever.