The O'Chiese First Nation /oʊˈtʃiːz/ is a Saulteaux First 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.