Delaware State University (also called DSU, DESU, or Del State) is a public university in Dover, Delaware. It is a historically black university. That means that it was started to teach African American students.

DSU has campuses in Wilmington, Delaware and Georgetown, Delaware. It has six colleges. It has about 4,500 students, both undergraduate and postgraduate. DSU is the second-largest university in the state (after the University of Delaware).