Carstairs is a town in central Alberta, Canada. It is located on Highway 2A, south of the provincial capital, Edmonton, and north of Calgary, the nearest major city. The closest neighbouring communities are the towns of Didsbury and Crossfield. Carstairs is located entirely within the rural Mountain View County.
Named after Carstairs, Scotland, Carstairs began life as a loading platform on the railway connecting Calgary to Edmonton. The first post office opened in 1900. The first school district was established in 1901.