St. Mary's Central High School (SMCHS) is a private, Roman Catholic, co-educational high school in Bismarck, North Dakota, United States. It is part of the Light of Christ Catholic Schools district and is located in the Roman Catholic Diocese of Bismarck.
Originally at 1025 North 2nd Street, it moved to a new campus in the far north of the metro area in 2019.[2] The previous campus is now St. Mary's Academy, a dedicated middle school (grades 6-8).