Völsungakviða en nýja (The New Lay of the Völsungs) or Sigurðarkviða en mesta (The Longest Lay of Sigurd) is a narrative poem written by J.R.R. Tolkien in the early 1930s. It was published posthumously in 2009 in the collection The Legend of Sigurd & Gudrún. The title, Völsungakviða en nýja, translates to "The New Lay of the Völsungs," implying a modern recreation of the lost old story.
It is a modern poem written in the Old Norse fornyrðislag meter (though in English) that reorganizes and unifies the scattered, fragmentary Völsung stories from the Poetic Edda into a single narrative. The poem tells the story of the Völsung family, starting from the stealing of Andvari’s gold, through the death of Sinfjötli, to Sigurd's life, his slaying of the dragon Fafnir, and his betrayal and death. Tolkien, as a philologist, aimed to fill the gaps in the traditional Norse materials, creating a more comprehensive narrative structured after the original Eddaic style, and drew heavily on the Völsunga saga prose to fill in details.