Hrólfs saga kraka, the Saga of King Rolf Kraki, is a late legendary saga on the adventures Hrólfr Kraki, a semi-legendary king in what is now Denmark, and his clan, the Skjöldungs. The events can be dated to the late 5th century and the 6th century. A precursor text may have dated to the 13th century, but the saga in the form that survived to this day dates to c. 1400. Forty-four manuscripts survive, but the oldest one of them is from the 17th century, although a manuscript is known to have existed c. 1461 at the monastery of Möðruvellir in Iceland.
The saga elaborates on the same matter as several other sagas and chronicles in Scandinavian tradition, and also in the Anglo-Saxon poems Beowulf and Widsith. In Beowulf and Widsith, many of the same characters appear in their corresponding Old English forms: Hrólfr Kraki appears as Hroðulf, his father Helgi as Halga, his uncle Hróarr as Hroðgar, his grandfather Halfdan as Healfdene and their clan, the Skjöldungs, as the Scyldings. Moreover, some of their enemies also appear: Fróðo as Froda and king Aðils of Sweden as the Swedish king Eadgils. There are similarities between Bödvar Bjarki killing the beast at the king's court and the killing of Grendel in Beowulf.