Which Tolkien poem retells the medieval legend of Sigurd and Gudrún?

The Tolkien poem that retells the medieval legend of Sigurd and Gudrún is The Legend of Sigurd and Gudrún.

The work presents Tolkien’s modern retelling of material from the Volsung tradition and the medieval Poetic Edda. It focuses on Sigurd, the dragon-slayer, and Gudrún, whose story is intertwined with betrayal, treasure, kinship, and revenge. Rather than presenting the legend as prose fantasy, Tolkien composed it in verse forms inspired by Old Norse poetry.

Christopher Tolkien edited the work for publication after his father’s death. The book appeared in 2009 and includes an introduction and commentary explaining the source traditions and Tolkien’s poetic methods.

This poem is distinct from Tolkien’s Middle-earth narrative, although it reflects the same scholarly fascination with Germanic and Norse legend. Tolkien also wrote other mythic poems, including The Lay of Leithian, which concerns the Middle-earth figures Beren and Lúthien.