Augvald (Old Norse: Ǫgvaldr) was a semi-legendary Norwegian petty king portrayed in the legendary Norse sagas. If considered historical, reconstructed estimates based on saga information would have Augvald living some time in the 7th century AD. His kingdom was said to have been based in Jøsursheid, somewhere in the interior of south-western Norway. After a number of naval battles he succeeded in conquering the islands off the western coast of Rogaland. He subsequently moved his kingdom's seat to the north-east of Karmøy, the largest of those islands and adjacent to the strategically important Karmsund strait, to a site later given the name Avaldsnes, after the king. Augvald's kingdom further expanded to incorporate parts of what is today south-western Hordaland.
Augvald had several daughters, including two who notably fought alongside him as so-called shield-maidens, or female warriors. He owned and worshipped a sacred cow, which he always kept with him, believing he owed his victories to the cow and the power of its milk. Augvald was killed during a battle with his rival Ferking (in the Saga of Olaf Tryggvason called Varinn), the native king of western Karmøy, with whom his story is interlinked.