IAU (disambiguation)

• 5000 IAU
• Eiao
• Iau language
• Interamerican University of Puerto Rico
• International American University
• International American University College of Medicine
• International Association of Ultrarunners
• International Association of Universities
• International Astronomical Union
• International Crossbow Shooting Union
• Is Anyone Up?
• Islamic American University
• Islamic Azad University
• Italian Actors Union
• ultra running