Immaculate Heart High School and Middle School is a private, Catholic, college preparatory day school for young women grades 6-12. The school is located in the Los Feliz neighborhood in Los Angeles, California, United States, at the intersection of Franklin Avenue and Western Avenue. There are approximately 200 students in the middle school and over 550 in the high school.

The Sisters of the Immaculate Heart of Mary (IHM), founded as the Daughters of the Most Holy and Immaculate Heart of the Blessed Virgin Mary, is a Catholic religious teaching institute for women. The institute was founded in the Catalan city of Olot, (Spain) in 1848 by Father Joaquim Masmitjà i de Puig as a means of rebuilding society through the education of young women. A daughter house of the community was founded in Los Angeles, California, United States, in 1871, and in 1924 formally separated from the Spanish congregation and was established as a distinct institute.