| Notre Dame High School | |
| Streetaddress: | 7085 Brockton Avenue |
| City: | Riverside |
| State: | California |
| Zipcode: | 92506 |
| Country: | United States |
| District: | Diocese of San Bernardino |
| Religion: | Roman Catholic |
| President: | Dr. Chris Barrows |
| Principal: | Mr. Manuel Cardoza |
| Chaplain: | Father Paul Schmidt |
| Avg Class Size: | 20 |
| Type: | Catholic, Coeducational |
| Grades: | 9-12 |
| Motto: | Cor Unum Et Anima Una |
| Motto Translation: | One Heart, One Spirit |
| Accreditation: | Western Association of Schools and Colleges[1] |
| Rival: | Aquinas High School |
| Mascot: | Titan |
| Patron: | Mary, Mother of Jesus |
| Team Name: | Notre Dame Titans |
| Colors: | Green and Gold |
| Newspaper: | The Standard |
| Established: | 1956 |
| Enrollment: | 320 |
| Feeders: | St. Catherine of Alexandria, St. Francis de Sales, Our Lady of Perpetual Help, St. Thomas, St. Edward, St. James, Sacred Heart, St. George, St. Hyacinth Academy |
Notre Dame High School is a private, Roman Catholic high school in Riverside, California. It is located across the street from Saint Catherine of Alexandria Catholic Church at the corner of Brockton Avenue and Arlington Avenue. It is part of the Roman Catholic Diocese of San Bernardino.
Notre Dame is a secondary school founded in 1956 by the Most Reverend Charles F. Buddy, Bishop of the Diocese of San Diego, as a Diocesan secondary school for boys. The first principal was Reverend J.V. Sullivan, a Diocesan priest. In 1957, the administration of the school was taken over by the Holy Ghost Fathers, who staffed Notre Dame until 1970, at which time plans were drawn up to merge Notre Dame with St. Francis de Sales Girls High School. Notre Dame became a co-ed school at the start of the school year, in September 1972, under the direction of the Most Reverend Leo T. Maher, Bishop of the Diocese of San Diego.
In 1978, the Diocese of San Diego was divided and the new Diocese of San Bernardino was created with the Most Reverend Philip F. Straling as its first bishop.