The Sigurd stones form a group of eight or nine Swedish runic inscriptions and one picture stone that depict imagery from the Germanic heroic legend of Sigurd the dragon slayer. They were made during the Viking Age and constitute the earliest Norse representations of the matter of the Völsung cycle that is the basis of the Middle High German Nibelungenlied and the Sigurd legends in the Poetic Edda, the Prose Edda, and the Völsunga saga.

A runestone is typically a raised stone with a runic inscription, but the term can also be applied to inscriptions on boulders and on bedrock. The tradition of erecting runestones as a memorial to dead men began in the 4th century and lasted into the 12th century, but the majority of the extant runestones date from the late Viking Age. While most of these are located in Scandinavia, particularly Sweden, there are also scattered runestones in locations that were visited by Norsemen. Runestones were usually brightly coloured when erected, though this is no longer evident as the colour has worn off.