Circle of the Sun is a 1960 short documentary film on Kainai Nation, or Blood Tribe, of Southern Alberta, which captured their Sun Dance ritual on film for the first time. Tribal leaders, who worried the traditional ceremony might be dying out, had permitted filming as a visual record.

The film was directed by Colin Low, who was from the area. Low's father had been a foreman of the Cochrane Church Ranch in the area, southern Alberta and had known many Blood Tribe people since childhood. Colin Low had first witnessed the Sun Dance in 1953, the year he shot Corral. Footage of the Sun Dance was shot in 1956 and 1957, with the film completed in 1959. The film also included modern aspects of Blood Tribe life by shooting on an oil well on the reserve.