Utu or UTU can refer to the following things:

• Utu, a Sumerian deity

• Utu language

Utu (Māori concept), a Māori word referring to a ritualised revenge or payback to restore balance

• Utu (film), a New Zealand film

• Utu (gunboat), an Estonian gunboat during World War II

• The United Transportation Union

• Untriunium, a hypothetical chemical element

• Utu, Estonia, village in Käina Parish, Hiiu County, Estonia

• Fibera KK-1e Utu, glider

• Fainu'ulelei S. Utu (1924-1974), American Samoan politician

In education

• The Ulster Teachers' Union

• The United Transportation Union

• Teuku Umar University (Universitas Teuku Umar), a university in Indonesia

• University of Turku in Finland

• Utah Tech University in St. George, Utah

• Uttarakhand Technical University, a state science and technology university in Uttarakhand, India