| Loyola Sacred Heart High School | |
| Streetaddress: | 320 Edith Street |
| City: | Missoula |
| State: | Montana |
| County: | (Missoula County) |
| Zipcode: | 59801 |
| Country: | USA |
| Coordinates: | 46.8622°N -114.0022°W |
| School Number: | (406) 549-6101 |
| District: | Diocese of Helena |
| Religion: | Roman Catholic, (Jesuit) |
| Affiliation: | Roman Catholic Diocese of Helena |
| Superintendent: | Timothy Uhl |
| Principal: | Paul Richardson |
| Teaching Staff: | 20 |
| Ratio: | 10:1 |
| Type: | Private, Coeducational |
| Tuition: | Sliding Scale |
| Grades: | 9–12 |
| Campus Type: | Urban |
| Athletics Conference: | Class B; District 6 |
| Slogan: | From God . . . Through the Family . . . to the Individual |
| Fight Song: | "On Loyola" |
| Accreditation: | Northwest Accreditation Commission[1] |
| Mascot: | "Rambo" |
| Team Name: | Rams/Breakers |
| Colors: | Blue, Red, and White |
| Newspaper: | The Rampage |
| Established: | 1873 |
| Enrollment: | 200 |
| Enrollment As Of: | 2010-2011 |
| Feeder Schools: | St. Joseph School |
| Homepage: | http://www.missoulacatholicschools.org |
Loyola Sacred Heart High School is a private, Roman Catholic high school in Missoula, Montana. It is one of two high schools in the Roman Catholic Diocese of Helena, the other being Butte Central Catholic in Butte. It is affiliated with St. Joseph Elementary School, and both institutions are supported by the Loyola Sacred Heart Foundation. The Boys and Girls sports teams go by different names, being the Rams and the Breakers, respectively.
Loyola Sacred Heart was founded in 1873. It originally existed as two separated schools: Loyola High School, a boys-only institution founded by the Jesuits; and Sacred Heart Academy for Girls, founded by the Sisters of Providence.
In 1974 the two schools merged into a new school, ultimately called Loyola Sacred Heart High School. The first principal of the co-ed school was Orlando R. Barone of Philadelphia, Pennsylvania, who served for six years.