| Immaculata Preparatory School | |
| Motto: | Virtus cum Scientia (Latin) |
| Location: | Washington, D.C. (1905–1986) Rockville, Maryland (1986–1991) |
| Country: | United States |
| Other Names: | Immaculata Seminary Immaculata High School Immaculata Junior College Immaculata College High School |
| Former Names: | --> |
| Type: | Private, college-prep |
| Religious Affiliation: | Roman Catholic Sisters of Providence of Saint Mary-of-the-Woods |
| Established: | 1905 |
| Founders: | --> |
| Closed: | 1991 |
| District: | Archdiocese of Washington Catholic Schools |
| Gender: | Girls |
| Colors: | Blue |
| Teams Label: | to override the default label --> |
| Accreditation: | Middle States Association of Colleges and Schools |
| Newspaper: | The Immaculata News |
| Yearbook: | Guerin |
Immaculata Preparatory School was a private all-girls school that operated in the Washington, D.C. area from 1905 to 1991.
Immaculata Seminary was opened by the Sisters of Providence of Saint Mary-of-the-Woods in 1905 in the Tenleytown neighborhood of Washington, D.C.
After plans were made to close the school and sell the campus to American University in 1984, a group of parents successfully sued the Sisters of Providence in order to keep the school open. Immaculata then moved to Rockville, Maryland, where it operated as "Immaculata College High School" until 1991.[1]