Roncalli High School is a private, Roman Catholic high school in Aberdeen, South Dakota. It is located in the Roman Catholic Diocese of Sioux Falls.
Roncalli High School is named after Pope John XXIII, born Angelo Giuseppe Roncalli.
Roncalli is a member of the South Dakota High School Activities Association. They have won the following SDHSAA State Championships:
Dacotah Bank Stadium is the home venue for all Roncalli football games.