Qazvin Islamic Azad University (QIAU) (Persian: دانشگاه آزاد اسلامی قزوین) is a private research university based in Qazvin, Iran. It is one of the largest and most reputable branches of the Islamic Azad University. Sometimes, QIAU is referred to as Islamic Azad University of Qazvin or the Islamic Azad University, Qazvin Branch.