Hrafnagaldr Óðins (Odin’s raven-galdr, Odin’s raven Magic-song) or Forspjallsljóð (prelude poem) is an Icelandic poem in the style of the Poetic Edda. It is preserved only in late paper manuscripts. In his influential 1867 edition of the Poetic Edda, Sophus Bugge reasoned that the poem was a 17th-century work, composed as an introduction to Baldrs draumar (Baldrs dreams). Since then it has not been included in editions of the Poetic Edda and not been extensively studied. The poem consists of 26 fornyrðislag – eight-line stanzas. It involves several known figures from Norse mythology, including Odin, Idun, Heimdall, Loke and Brage.