The O'Chiese First Nation/oʊˈtʃiːz/ is a SaulteauxFirst Nation in Alberta, Canada. The First Nation's homeland is the 14,131.9 ha (34,921 acres) O'Chiese 203A Indian reserve, located approximately 23 km (14 mi) northwest of Rocky Mountain House. Also reserved is the O'Chiese Cemetery 203A. As of November 2013, the First Nation had the population of 1,250 registered people, of which the on-reserve population was 831 people. The primary language spoken on the reserve is Saulteaux. Though the ancestors of O'Chiese First Nation made the area about Baptiste River their winter camp site where they hunted moose and deer, and trapped small game for the Fur trade, they also migrated as far south as the Milk River in Montana in the summer.
The O'Chiese First Nation elect their leadership through the Act Electoral System. The current council consists of Chief Darren Whitford and six Councillors: Ray Douglas Beaverbones, Martin Ironbow, Barry Saulteaux, Cleon Strawberry, Robert Strawberry, and Cedric Whitford. Their two-year term began on February 20, 2013. The First Nation is affiliated with Yellowhead Tribal Council. O'Chiese First Nation is a signatory to Treaty 6 adhesion, signed on May 13, 1950.