The Ursuline Academy is a historic convent and former Catholic school located at 2300 Central Avenue in Great Falls, Montana, in the United States. Constructed by the Ursuline Sisters, a Catholic religious institute for women, the building was complete in 1912. It was originally known as the Ursuline Academy Boarding and Day School, a school for children age five to 12. The building was listed on the National Register of Historic Places on September 26, 1991.