Wilmington University is a private, non-profit, doctoral research institution with its main campus located in New Castle, Delaware, United States.

Wilmington University was founded in 1968 as Wilmington College by educator Dr. Donald Ross. It officially became Wilmington University in 2007, after the approval of the Board of Trustees and the Middle States Commission on Higher Education.

As of 2016, the university serves a total student body of 20,522 undergraduate and postgraduate students in nearly 100 degree and certificate programs. The university's programs are offered at its main campus in historic New Castle as well as at six additional campuses in Delaware, several partnership locations in New Jersey, and a single partnership location in northeastern Maryland.