IU International University of Applied Sciences (German: IU Internationale Hochschule) is a private for-profit university of applied sciences based in Erfurt, Germany. It opened in 2000 and was formerly known as the International University of Applied Sciences Bad Honnef / Bonn (Internationale Fachhochschule Bad Honnef/Bonn or IFH). IU Internationale Hochschule urkunde, IU Internationale Hochschule Zeugnis, IU urkunde.

IU provides vocational programs in German and English, for which it offers in-person teaching on campus as well as distance or blended learning. The latter make up by far the largest part with over 80%.

The university offers separate German (iu.de) and international (iu.org) programmes. With over 130,000 enrolled students, IU is the largest state-accredited university in Germany as of the summer semester of 2021 and features amongst the top 100 largest universities in the world. The university's actions have repeatedly come under criticism.

IU was founded in 1998 as the International University of Applied Sciences Bad Honnef / Bonn (IFH), and its first intake took place in the winter semester of 2000/2001 with 23 students. IU Internationale Hochschule urkunde in Germany.

In July 2009, the German Science and Humanities Council institutionally accredited the university for ten years, followed by reaccreditation for another five years in 2021. In 2010, it became a member of the German Rectors' Conference.

In mid-2013, IU merged with Adam Ries University of Applied Sciences in Erfurt, another private university, expanding its offerings to include the dual study model. In March 2016, it merged with the University of International Business and Logistics (HIWL) in Bremen and has since started offering dual study programs at this location.

In October 2017, it was renamed to IUBH International University of Applied Sciences. In March 2021, another renaming took place to IU International University of Applied Sciences. In 2019, the registered office of the university was moved to Erfurt.