Immaculata Preparatory School
Location
Washington, D.C. (1905–1986) Rockville, Maryland (1986–1991) United States
Information
Other names	Immaculata Seminary Immaculata High School Immaculata Junior College Immaculata College High School
Type	Private, college-prep
Motto	Virtus cum Scientia (Latin) ("Virtue and Knowledge United")
Religious affiliation(s)	Roman Catholic Sisters of Providence of Saint Mary-of-the-Woods
Established	1905
Closed	1991
School district	Archdiocese of Washington Catholic Schools
Gender	Girls
Color(s)	Blue
Accreditation	Middle States Association of Colleges and Schools
Newspaper	The Immaculata News
Yearbook	Guerin
Website	www.immaculatadc.org

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]

• Maeve Brennan, '36
• Maureen Dowd, '70
• Regina Hall, '88
• Patricia McGerr, '33

• In his 1917 book, The Profits of Religion, Upton Sinclair mentions Immaculata Seminary among a list of Catholic schools and colleges with "strange titles."
• During his 2018 confirmation hearings, Brett Kavanaugh described socializing with friends from Catholic all-girls high schools, including Immaculata.^[2]