Au
- .au
- A.U
- AGROunia
- AU (band)
- AU Small Finance Bank
- Aarhus University
- Ab urbe condita
- Abasyn University
- Aberystwyth University
- Abhilashi University
- Absorbance
- Adelaide University
- Adelphi University
- Adesh University
- Adobe Audition
- African Union
- Age of Ultron
- Air University (disambiguation)
- Ajou University
- Akademia Umiejętności
- Aletheia University
- Alfred University
- Algoma University
- Allahabad University
- Alternative Ulster
- Alternative universe (fan fiction)
- American University
- Americans United for Separation of Church and State
- Anaheim University
- Anderson University (Indiana)
- Anderson University (South Carolina)
- Andhra University
- Andrews University
- Anhui University
- Antioch University
- Apollos University
- Arbitrary unit
- Arcadia University
- Arden University
- Arellano University
- Argosy University
- Arizona University
- Ashland University
- Assumption University (Thailand)
- Astronomical unit
- Athabasca University
- Athletic Union
- Atomic units
- Au (Munich)
- Au (Schwarzwald)
- Au (squat)
- Au (surname)
- Au Co
- Au am Leithaberge
- Au am Rhein
- Au file format
- Au im Bregenzerwald
- Au in der Hallertau
- Au language
- Au peninsula
- Au, Guinea
- Au, St. Gallen
- Au, Vorarlberg
- Au, Zürich
- Auburn University
- Auckland University
- Audio Units
- Aue (toponymy)
- Augsburg University
- Augusta University
- Aurora University
- Austral Líneas Aéreas
- Australia
- Austria
- Auxiliary Units
- Aú
- Christopher Hewitt Award
- F4U
- Ford Falcon (AU)
- Gold
- List of political parties in Poland
- Schloss Au
- Some Time in New York City
- Windows 10 Anniversary Update
- Windows Update
- Ångström unit