The term WWU has the following meanings:
- University of Münster (Westphalian Wilhelms-University Münster), in Münster, North Rhine-Westphalia, Germany
- Walla Walla University, in Washington, U.S.
- Warehouse Workers United
- Western Washington University, a university located in Bellingham, Washington, U.S.
- William Woods University, in Fulton, Missouri, U.S.
- Working Women United, a women's rights organisation