Delta Delta Delta, often referred to as Tri Delta, is a national sorority founded in 1888 at Boston University. It is a women's organization that focuses on sisterhood, philanthropy, and academic excellence. The sorority's mission is to promote a supportive community for its members while encouraging personal growth and leadership. The sorority is known for its commitment to charitable work, particularly its partnership with St. Jude Children's Research Hospital. Members participate in various fundraising events and community service activities to support this cause. Delta Delta Delta has chapters at numerous colleges and universities across the United States and Canada.