The Technische Universität Ilmenau (TU Ilmenau) is a German public research university located in Ilmenau, Thuringia, Germany. It was founded in 1894, it has a total of 5 academic departments (faculties) and about 7,200 students.

Research and education at the Technische Universität Ilmenau is focused on engineering with strong links to economics and natural sciences. It is the only university in the federal state of Thüringen with the title “Technische Universität”. Today's university began its life in 1894 as the "Thüringisches Technikum”, a private training college. This took on the status of Hochschule für Elektrotechnik (HfE) before becoming a Technische Hochschule (TH) and in 1992 being accorded the title of Technische Universität (TU).

Academics
TU Ilmenau offers degrees in technology, science, economics and media. These all also form part of the interdisciplinary media subjects which are a more recent development and combine technology, economics, law and social studies.

The 7200 or so students (at the last count) include about 1650 who come from outside Germany. The courses they take lead to Bachelor’s and/or master's degrees in which the subjects tend to be drawn from a number of disciplines within the overall groups of Engineering, Mathematics with Science, and Economics with Social Studies.

Research
Research in Ilmenau is carried out at all stages: theory, application of the theory, prototype testing and transfer to industrial application. Because the TU relies upon interdisciplinary work across faculty boundaries, and brings together many skills thereby, the following highly competitive research activities have been established:
- Nano-engineering
- Precision engineering, instrumentation and measurement
- Technical and biomedical prosthetic systems
- Drive technology, energy and environmental engineering
- Digital media technology
- Mobile communications