Katharine Drexel, SBS was an American Catholic religious sister, and educator. In 1891, she founded the Sisters of the Blessed Sacrament, a religious congregation serving Black and Indigenous Americans.

The Sisters of the Blessed Sacrament (SBS) are a Catholic order of religious sisters in the United States. They were founded in 1891 by Katharine Drexel as the Sisters of the Blessed Sacrament for Indians and People of Color.