The Spælsau (Old Norwegian Short Tail Landrace, Gamalnorsk spæl Norwegian) is a breed of sheep from Norway. Many consider Spælsau to be the original breed of sheep in Norway, and it is one of the Northern European short-tailed sheep breeds. It is well adapted to the climate and was a domestic animal from the Iron Age. The spælsau stock is about 22% of the sheep in Norway.