The Piegan (Blackfeet: ᑯᖿᖹ / Piikáni / ṗiik̇ǔni, Blackfoot pronunciation: [piːkʌ́ni]) are an Algonquian-speaking people from the North American Great Plains. They are the largest of three Blackfeet-speaking groups that make up the Blackfeet Confederacy; the Siksika and Kainai are the others. The Piegan dominated much of the northern Great Plains during the nineteenth century.