AUA
- Adventist University of Africa
- Agricultural University of Athens
- American Union of Associationists
- American Unitarian Association
- American University of Antigua College of Medicine
- American University of Armenia
- American Urological Association
- As-Salamu Alaykum
- Asian Universities Alliance
- Association of University Administrators
- Atlantic University Alliance
- Aua (Inuit)
- Aua (Neuenstein)
- Aua (New Zealand)
- Aua (band)
- Aua Island
- Aua, American Samoa
- Australian Uranium Association
- Austrian Airlines
- Queen Beatrix International Airport
- Reef Islands