Miller Comprehensive Catholic High School is a Catholic high school located in the Core Group neighbourhood in the central area of Regina, Saskatchewan, Canada. It was the first high school built by the Regina Catholic school system. It is named after Joseph P. Miller who was a longtime member of the school board. Its feeder elementary schools include Jean Vanier School, St. Augustine Community School, St. Catherine Community School, St. Dominic Savio School, St. Gabriel School, St. Marguerite Bourgeoys School, St. Theresa School, and École St. Elizabeth School.