An open university is a university with an open-door academic policy.
Open university may also refer to specific organizations:
- The Open University (OU), a public distance-learning and research university based in the United Kingdom
- Open University of Diversity, headquarters of Belgian artist Koen Vanmechelen
- The Open University of Japan, formerly known as the University of the Air
- Open University Press, an academic publisher now owned by McGraw-Hill Education
- Bangladesh Open University, an open public university of Bangladesh.
- Sex Worker Advocacy and Resistance Movement, formerly known as Sex Worker Open University