Souls Grown Deep Foundation is a non-profit organization dedicated to documenting, preserving, and promoting the work of leading contemporary African American artists from the Southeastern United States. Its mission is to include their contributions in the canon of American art history through acquisitions from its collection by major museums, as well as through exhibitions, programs, and publications. The foundation derives its name from a 1921 poem by Langston Hughes (1902–1967) titled "The Negro Speaks of Rivers," the last line of which is "My soul has grown deep like the rivers.