ETU
- E tū
- Eckernforde Tanga University
- Electrical Trades Union (disambiguation)
- Energy transfer upconversion
- Erzurum Technical University
- Ethylene thiourea
- Etu
- Etu Molden
- Etu Uaisele
- European Taekwondo Union
- European Triathlon Union
- Jagham language
- Saint Petersburg Electrotechnical University
- TOBB University of Economics and Technology